handle naming when primary channel has a name (#422)

* Parallelize federation work with worker pool

* Handle worker pool shutdown fallback during federation announcements

.env.example

@@ -49,6 +49,12 @@ MAX_DISTANCE=42
 # Matrix aliases (e.g. #meshtastic-berlin:matrix.org) will be linked via matrix.to automatically.
 CONTACT_LINK='#potatomesh:dod.ngo'
 
+# Enable or disable PotatoMesh federation features (1=enabled, 0=disabled)
+FEDERATION=1
+
+# Hide public mesh messages from unauthenticated visitors (1=hidden, 0=public)
+PRIVATE=0
+
 
 # =============================================================================
 # ADVANCED SETTINGS
@@ -65,6 +71,9 @@ INSTANCE_DOMAIN=mesh.example.org
 # Docker image architecture (linux-amd64, linux-arm64, linux-armv7)
 POTATOMESH_IMAGE_ARCH=linux-amd64
 
+# Docker image tag (use "latest" for the newest release or pin to vX.Y)
+POTATOMESH_IMAGE_TAG=latest
+
 # Docker Compose networking profile
 # Leave unset for Linux hosts (default host networking).
 # Set to "bridge" on Docker Desktop (macOS/Windows) if host networking

.github/workflows/docker.yml

@@ -56,12 +56,17 @@ jobs:
       id: version
       run: |
         if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
-          VERSION="${{ github.event.inputs.version }}"
+          RAW_VERSION="${{ github.event.inputs.version }}"
         else
-          VERSION=${GITHUB_REF#refs/tags/v}
+          RAW_VERSION=${GITHUB_REF#refs/tags/}
         fi
-        echo "version=$VERSION" >> $GITHUB_OUTPUT
-        echo "Published version: $VERSION"
+
+        STRIPPED_VERSION=${RAW_VERSION#v}
+
+        echo "version=$STRIPPED_VERSION" >> $GITHUB_OUTPUT
+        echo "version_with_v=v$STRIPPED_VERSION" >> $GITHUB_OUTPUT
+        echo "raw_version=$RAW_VERSION" >> $GITHUB_OUTPUT
+        echo "Published version: $STRIPPED_VERSION"
 
     - name: Build and push ${{ matrix.service }} for ${{ matrix.architecture.name }}
       uses: docker/build-push-action@v5
@@ -74,6 +79,7 @@ jobs:
         tags: |
           ${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}-${{ matrix.service }}-${{ matrix.architecture.name }}:latest
           ${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}-${{ matrix.service }}-${{ matrix.architecture.name }}:${{ steps.version.outputs.version }}
+          ${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}-${{ matrix.service }}-${{ matrix.architecture.name }}:${{ steps.version.outputs.version_with_v }}
         labels: |
           org.opencontainers.image.source=https://github.com/${{ github.repository }}
           org.opencontainers.image.description=PotatoMesh ${{ matrix.service == 'web' && 'Web Application' || 'Python Ingestor' }} for ${{ matrix.architecture.label }}
@@ -111,12 +117,15 @@ jobs:
     - name: Extract version from tag
       id: version
       run: |
-        VERSION=${GITHUB_REF#refs/tags/v}
-        echo "version=$VERSION" >> $GITHUB_OUTPUT
+        RAW_VERSION=${GITHUB_REF#refs/tags/}
+        STRIPPED_VERSION=${RAW_VERSION#v}
+        echo "version=$STRIPPED_VERSION" >> $GITHUB_OUTPUT
+        echo "version_with_v=v$STRIPPED_VERSION" >> $GITHUB_OUTPUT
 
     - name: Test web application (Linux AMD64)
       run: |
         docker pull ${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}-web-linux-amd64:${{ steps.version.outputs.version }}
+        docker pull ${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}-web-linux-amd64:${{ steps.version.outputs.version_with_v }}
         docker run --rm -d --name web-test -p 41447:41447 \
           -e API_TOKEN=test-token \
           -e DEBUG=1 \
@@ -128,6 +137,7 @@ jobs:
     - name: Test ingestor (Linux AMD64)
       run: |
         docker pull ${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}-ingestor-linux-amd64:${{ steps.version.outputs.version }}
+        docker pull ${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}-ingestor-linux-amd64:${{ steps.version.outputs.version_with_v }}
         docker run --rm --name ingestor-test \
           -e POTATOMESH_INSTANCE=http://localhost:41447 \
           -e API_TOKEN=test-token \

.gitignore

@@ -69,3 +69,7 @@ ai_docs/
 
 # Generated credentials for the instance
 web/.config
+
+# JavaScript dependencies
+node_modules/
+web/node_modules/

AGENTS.md

@@ -0,0 +1,39 @@
+# Repository Guidelines
+
+Keep code well structured, modular, and not monolithic. If modules get to big, consider submodules structure.
+
+Make sure all tests pass for Python (`pytest`), Ruby (`rspec`), and JavaScript (`npm test`).
+
+Make sure all code is properly inline documented (PDoc, RDoc, JSDoc, et.c). We do not want any undocumented code.
+
+Make sure all code is 100% unit tested. We want all lines, units, and branches to be thouroughly covered by tests.
+
+New source files should have Apache v2 license headers.
+
+Run linters for Python (`black`) and Ruby (`rufo`) to ensure consistent code formatting.
+
+## Project Structure & Module Organization
+The repository splits runtime and ingestion logic. `web/` holds the Sinatra dashboard (Ruby code in `lib/potato_mesh`, views in `views/`, static bundles in `public/`).
+
+`data/` hosts the Python Meshtastic ingestor plus migrations and CLI scripts. API fixtures and end-to-end harnesses live in `tests/`. Dockerfiles and compose files support containerized workflows.
+
+## Build, Test, and Development Commands
+Run dependency installs inside `web/`: `bundle install` for gems and `npm ci` for JavaScript tooling. Start the app with `cd web && API_TOKEN=dev ./app.sh` for local work or `bundle exec rackup -p 41447` when integrating elsewhere.
+
+Prep ingestion with `python -m venv .venv && pip install -r data/requirements.txt`; `./data/mesh.sh` streams from live radios. `docker-compose -f docker-compose.dev.yml up` brings up the full stack.
+
+## Coding Style & Naming Conventions
+Use two-space indentation for Ruby and keep `# frozen_string_literal: true` at the top of new files. Keep Ruby classes/modules in `CamelCase`, filenames in `snake_case.rb`, and feature specs in `*_spec.rb`.
+
+JavaScript follows ES modules under `public/assets/js`; co-locate components with `__tests__` folders and use kebab-case filenames. Format Ruby via `bundle exec rufo .` and Python via `black`. Skip committing generated coverage artifacts.
+
+## Testing Guidelines
+Ruby specs run with `cd web && bundle exec rspec`, producing SimpleCov output in `coverage/`. Front-end behaviour is verified through Node’s test runner: `cd web && npm test` writes V8 coverage and JUnit XML under `reports/`.
+
+The ingestion layer is guarded by `pytest -q tests/test_mesh.py`; leave fixtures in `tests/` untouched so CI can replay them. New features should ship with matching specs and updated integration checks.
+
+## Commit & Pull Request Guidelines
+Commits should stay imperative and reference issues the way history does (`Add chat log entries... (#408)`). Squash noisy work-in-progress commits before pushing. Pull requests need a concise summary, screenshots or curl traces for UI/API tweaks, and links to tracked issues. Paste the command output for the test suites you ran and mention configuration toggles (`API_TOKEN`, `PRIVATE`) reviewers must set.
+
+## Security & Configuration Tips
+Never commit real API tokens or `.sqlite` dumps; use `.env.local` files ignored by Git. Confirm env defaults (`API_TOKEN`, `INSTANCE_DOMAIN`, `PRIVATE`) before deploying, and set `FEDERATION=0` when staging private nodes. Review `PROMETHEUS.md` when exposing metrics so scrape endpoints stay internal.

CHANGELOG.md

@@ -1,5 +1,38 @@
 # CHANGELOG
 
+## v0.5.3
+
+* Add telemetry formatting utilities and extend node overlay by @l5yth in <https://github.com/l5yth/potato-mesh/pull/387>
+* Prune blank values from API responses by @l5yth in <https://github.com/l5yth/potato-mesh/pull/386>
+* Add full support to telemetry schema and API by @l5yth in <https://github.com/l5yth/potato-mesh/pull/385>
+* Respect PORT environment override by @l5yth in <https://github.com/l5yth/potato-mesh/pull/384>
+* Add instance selector dropdown for federation deployments by @l5yth in <https://github.com/l5yth/potato-mesh/pull/382>
+* Harden federation announcements by @l5yth in <https://github.com/l5yth/potato-mesh/pull/381>
+* Ensure private mode disables federation by @l5yth in <https://github.com/l5yth/potato-mesh/pull/380>
+* Ensure private mode disables chat messaging by @l5yth in <https://github.com/l5yth/potato-mesh/pull/378>
+* Disable federation features when FEDERATION=0 by @l5yth in <https://github.com/l5yth/potato-mesh/pull/379>
+* Expose PRIVATE environment configuration across tooling by @l5yth in <https://github.com/l5yth/potato-mesh/pull/377>
+* Fix frontend coverage export for Codecov by @l5yth in <https://github.com/l5yth/potato-mesh/pull/376>
+* Restrict /api/instances results to recent records by @l5yth in <https://github.com/l5yth/potato-mesh/pull/374>
+* Expose FEDERATION environment option across tooling by @l5yth in <https://github.com/l5yth/potato-mesh/pull/375>
+* Chore: bump version to 0.5.3 by @l5yth in <https://github.com/l5yth/potato-mesh/pull/372>
+
+## v0.5.2
+
+* Align theme and info controls by @l5yth in <https://github.com/l5yth/potato-mesh/pull/371>
+* Fixes POST request 403 errors on instances behind Cloudflare proxy by @varna9000 in <https://github.com/l5yth/potato-mesh/pull/368>
+* Delay initial federation announcements by @l5yth in <https://github.com/l5yth/potato-mesh/pull/366>
+* Ensure well-known document stays in sync on startup by @l5yth in <https://github.com/l5yth/potato-mesh/pull/365>
+* Guard federation DNS resolution against restricted networks by @l5yth in <https://github.com/l5yth/potato-mesh/pull/362>
+* Add federation ingestion limits and tests by @l5yth in <https://github.com/l5yth/potato-mesh/pull/364>
+* Prefer reported primary channel names by @l5yth in <https://github.com/l5yth/potato-mesh/pull/363>
+* Decouple message API node hydration by @l5yth in <https://github.com/l5yth/potato-mesh/pull/360>
+* Fix ingestor reconnection detection by @l5yth in <https://github.com/l5yth/potato-mesh/pull/361>
+* Harden instance domain validation by @l5yth in <https://github.com/l5yth/potato-mesh/pull/359>
+* Ensure INSTANCE_DOMAIN propagates to containers by @l5yth in <https://github.com/l5yth/potato-mesh/pull/358>
+* Chore: bump version to 0.5.2 by @l5yth in <https://github.com/l5yth/potato-mesh/pull/356>
+* Gracefully retry federation announcements over HTTP by @l5yth in <https://github.com/l5yth/potato-mesh/pull/355>
+
 ## v0.5.1
 
 * Recursively ingest federated instances by @l5yth in <https://github.com/l5yth/potato-mesh/pull/353>

DOCKER.md

@@ -13,13 +13,15 @@ will pull the latest release images for you.
 
 ## Images on GHCR
 
-| Service  | Image                                                             |
-|----------|-------------------------------------------------------------------|
-| Web UI   | `ghcr.io/l5yth/potato-mesh-web-linux-amd64:latest`                |
-| Ingestor | `ghcr.io/l5yth/potato-mesh-ingestor-linux-amd64:latest`           |
+| Service  | Image                                                                                                         |
+|----------|---------------------------------------------------------------------------------------------------------------|
+| Web UI   | `ghcr.io/l5yth/potato-mesh-web-linux-amd64:<tag>` (e.g. `latest`, `3.0`, or `v3.0`)                           |
+| Ingestor | `ghcr.io/l5yth/potato-mesh-ingestor-linux-amd64:<tag>` (e.g. `latest`, `3.0`, or `v3.0`)                      |
 
-Images are published for every tagged release. Replace `latest` with a
-specific version tag if you prefer pinned deployments.
+Images are published for every tagged release. Each build receives both semantic
+version tags (for example `3.0`) and a matching `v`-prefixed tag (for example
+`v3.0`). `latest` always points to the newest release, so pin one of the version
+tags when you need a specific build.
 
 ## Configure environment
 
@@ -36,17 +38,24 @@ INSTANCE_DOMAIN=mesh.example.org
 
 Additional environment variables are optional:
 
-- `CHANNEL`, `FREQUENCY`, `MAP_CENTER`, `MAX_DISTANCE`, and `CONTACT_LINK`
-  customise the UI.
-- `POTATOMESH_INSTANCE` (defaults to `http://web:41447`) lets the ingestor post
-  to a remote PotatoMesh instance if you do not run both services together.
-- `CONNECTION` overrides the default serial device or network endpoint used by
-  the ingestor.
-- `CHANNEL_INDEX` selects the LoRa channel when using serial or Bluetooth
-  connections.
-- `INSTANCE_DOMAIN` pins the public hostname advertised by the web UI and API
-  responses, bypassing reverse DNS detection when set.
-- `DEBUG` enables verbose logging across the stack.
+| Variable | Default | Purpose |
+| --- | --- | --- |
+| `API_TOKEN` | _required_ | Shared secret used by the ingestor and API clients for authenticated `POST` requests. |
+| `INSTANCE_DOMAIN` | _auto-detected_ | Public hostname (optionally with port) advertised by the web UI, metadata, and API responses. |
+| `SITE_NAME` | `"PotatoMesh Demo"` | Title and branding surfaced in the web UI. |
+| `CHANNEL` | `"#LongFast"` | Default LoRa channel label displayed on the dashboard. |
+| `FREQUENCY` | `"915MHz"` | Default LoRa frequency description shown in the UI. |
+| `CONTACT_LINK` | `"#potatomesh:dod.ngo"` | Chat link or Matrix room alias rendered in UI footers and overlays. |
+| `MAP_CENTER` | `38.761944,-27.090833` | Latitude and longitude that centre the map view. |
+| `MAX_DISTANCE` | `42` | Maximum relationship distance (km) before edges are hidden. |
+| `DEBUG` | `0` | Enables verbose logging across services when set to `1`. |
+| `FEDERATION` | `1` | Controls whether the instance announces itself and crawls peers (`1`) or stays isolated (`0`). |
+| `PRIVATE` | `0` | Restricts public visibility and disables chat/message endpoints when set to `1`. |
+| `CONNECTION` | `/dev/ttyACM0` | Serial device, TCP endpoint, or Bluetooth target used by the ingestor to reach the radio. |
+
+The ingestor also respects supporting variables such as `POTATOMESH_INSTANCE`
+(defaults to `http://web:41447`) for remote posting and `CHANNEL_INDEX` when
+selecting a LoRa channel on serial or Bluetooth connections.
 
 ## Docker Compose file
 

PROMETHEUS.md

@@ -0,0 +1,100 @@
+# Prometheus Monitoring for PotatoMesh
+
+PotatoMesh exposes runtime telemetry through a dedicated Prometheus endpoint so you can
+observe message flow, node health, and geospatial metadata alongside the rest of your
+infrastructure. This guide explains how the exporter is wired into the web
+application, which metrics are available, and how to integrate the endpoint with a
+Prometheus server.
+
+## Runtime integration
+
+The Sinatra application automatically loads the `prometheus-client` gem and mounts the
+collector and exporter middlewares during boot. No additional configuration is
+required to enable the `/metrics` endpoint—running the web application is enough to
+serve Prometheus data on the same port as the dashboard. The middleware pair both
+collects default Rack statistics and publishes PotatoMesh-specific gauges and
+counters that are updated whenever the ingestors process new node records.
+
+A background refresh is triggered during start-up via
+`update_all_prometheus_metrics_from_nodes`, which seeds the gauges based on the latest
+state in the database. Subsequent POST requests to the ingest APIs update each metric
+in near real time.
+
+## Selecting which nodes are exported
+
+To avoid creating high-cardinality time series, PotatoMesh does not export per-node
+metrics unless you opt in by providing node identifiers. Control this behaviour with
+the `PROM_REPORT_IDS` environment variable:
+
+- Leave the variable unset or blank to only export aggregate gauges such as the total
+  node count.
+- Set `PROM_REPORT_IDS=*` to export metrics for every node in the database.
+- Provide a comma-separated list (for example `PROM_REPORT_IDS=ABCD1234,EFGH5678`) to
+  expose metrics for specific nodes.
+
+The selection applies to both the initial refresh and the incremental updates handled
+by the ingest pipeline.
+
+## Available metrics
+
+| Metric name | Type | Labels | Description |
+| --- | --- | --- | --- |
+| `meshtastic_messages_total` | Counter | _none_ | Increments each time the ingest pipeline accepts a new message payload. |
+| `meshtastic_nodes` | Gauge | _none_ | Tracks the number of nodes currently stored in the database. |
+| `meshtastic_node` | Gauge | `node`, `short_name`, `long_name`, `hw_model`, `role` | Reports a node as present (value `1`) along with identity metadata. |
+| `meshtastic_node_battery_level` | Gauge | `node` | Most recent battery percentage reported by the node. |
+| `meshtastic_node_voltage` | Gauge | `node` | Most recent battery voltage reading. |
+| `meshtastic_node_uptime_seconds` | Gauge | `node` | Uptime reported by the device in seconds. |
+| `meshtastic_node_channel_utilization` | Gauge | `node` | Latest channel utilisation ratio supplied by the node. |
+| `meshtastic_node_transmit_air_utilization` | Gauge | `node` | Proportion of on-air time spent transmitting. |
+| `meshtastic_node_latitude` | Gauge | `node` | Latitude component of the last known position. |
+| `meshtastic_node_longitude` | Gauge | `node` | Longitude component of the last known position. |
+| `meshtastic_node_altitude` | Gauge | `node` | Altitude (in metres) of the last known position. |
+
+All per-node gauges are only emitted for identifiers included in `PROM_REPORT_IDS`.
+Some values require telemetry packets to be present—for example, devices must provide
+metrics or positional updates before the related gauges appear.
+
+## Accessing the `/metrics` endpoint
+
+Once the application is running, query the exporter directly:
+
+```bash
+curl http://localhost:41447/metrics
+```
+
+Use any HTTP client capable of plain-text requests. Prometheus scrapers should target
+the same URL. The endpoint returns data in the standard exposition format produced by
+`prometheus-client`.
+
+## Prometheus scrape configuration
+
+Add a job to your Prometheus server configuration that points to the PotatoMesh
+instance. This example polls an instance running locally on the default port every 15
+seconds:
+
+```yaml
+scrape_configs:
+  - job_name: potatomesh
+    scrape_interval: 15s
+    static_configs:
+      - targets:
+          - localhost:41447
+```
+
+If your deployment requires authentication or runs behind a reverse proxy, configure
+Prometheus to match your network topology (for example by adding basic authentication
+credentials, custom headers, or TLS settings).
+
+## Troubleshooting
+
+- **No per-node metrics appear.** Ensure that `PROM_REPORT_IDS` is set and that the
+  specified nodes exist in the database. Set the value to `*` if you want to export
+  every node during initial validation.
+- **Metrics look stale after a restart.** Confirm that the ingestor is still posting
+  telemetry. The exporter only reflects data stored in the PotatoMesh database.
+- **Scrapes time out.** Verify that the Prometheus server can reach the PotatoMesh
+  HTTP port and that no reverse proxy is blocking the `/metrics` path.
+
+With the endpoint configured, you can build Grafana dashboards or alerting rules to
+keep track of community mesh health in real time.

README.md

@@ -70,14 +70,20 @@ exec ruby app.rb -p 41447 -o 0.0.0.0
 
 The web app can be configured with environment variables (defaults shown):
 
-* `SITE_NAME` - title and header shown in the UI (default: "PotatoMesh Demo")
-* `CHANNEL` - default channel shown in the UI (default: "#LongFast")
-* `FREQUENCY` - default frequency shown in the UI (default: "915MHz")
-* `MAP_CENTER` - default map center coordinates (default: `38.761944,-27.090833`)
-* `MAX_DISTANCE` - hide nodes farther than this distance from the center (default: `42`)
-* `CONTACT_LINK` - chat link or Matrix alias for footer and overlay (default: `#potatomesh:dod.ngo`)
-* `PRIVATE` - set to `1` to hide the chat UI, disable message APIs, and exclude hidden clients (default: unset)
-* `INSTANCE_DOMAIN` - public hostname (optionally with port) used for metadata, federation, and API links (default: auto-detected)
+| Variable | Default | Purpose |
+| --- | --- | --- |
+| `API_TOKEN` | _required_ | Shared secret that authorizes ingestors and API clients making `POST` requests. |
+| `INSTANCE_DOMAIN` | _auto-detected_ | Public hostname (optionally with port) used for metadata, federation, and generated API links. |
+| `SITE_NAME` | `"PotatoMesh Demo"` | Title and header displayed in the UI. |
+| `CHANNEL` | `"#LongFast"` | Default channel name displayed in the UI. |
+| `FREQUENCY` | `"915MHz"` | Default frequency description displayed in the UI. |
+| `CONTACT_LINK` | `"#potatomesh:dod.ngo"` | Chat link or Matrix alias rendered in the footer and overlays. |
+| `MAP_CENTER` | `38.761944,-27.090833` | Latitude and longitude that centre the map on load. |
+| `MAX_DISTANCE` | `42` | Maximum distance (km) before node relationships are hidden on the map. |
+| `DEBUG` | `0` | Set to `1` for verbose logging in the web and ingestor services. |
+| `FEDERATION` | `1` | Set to `1` to announce your instance and crawl peers, or `0` to disable federation. Private mode overrides this. |
+| `PRIVATE` | `0` | Set to `1` to hide the chat UI, disable message APIs, and exclude hidden clients from public listings. |
+| `CONNECTION` | `/dev/ttyACM0` | Serial device, TCP endpoint, or Bluetooth target used by the ingestor to reach the Meshtastic radio. |
 
 The application derives SEO-friendly document titles, descriptions, and social
 preview tags from these existing configuration values and reuses the bundled
@@ -101,6 +107,23 @@ well-known document is staged in
 
 The database can be found in `$XDG_DATA_HOME/potato-mesh`.
 
+### Federation
+
+PotatoMesh instances can optionally federate by publishing signed metadata and
+discovering peers. Federation is enabled by default and controlled with the
+`FEDERATION` environment variable. Set `FEDERATION=1` (default) to announce your
+instance, respond to remote crawlers, and crawl the wider network. Set
+`FEDERATION=0` to keep your deployment isolated—federation requests will be
+ignored and the ingestor will skip discovery tasks. Private mode still takes
+precedence; when `PRIVATE=1`, federation features remain disabled regardless of
+the `FEDERATION` value.
+
+When federation is enabled, PotatoMesh automatically refreshes entries from
+known peers every eight hours to keep the directory current. Instances that
+stop responding are considered stale and are removed from the web frontend after
+72 hours, ensuring visitors only see active deployments in the public
+directory.
+
 ### API
 
 The web app contains an API:
@@ -121,6 +144,12 @@ The web app contains an API:
 
 The `API_TOKEN` environment variable must be set to a non-empty value and match the token supplied in the `Authorization` header for `POST` requests.
 
+### Observability
+
+PotatoMesh ships with a Prometheus exporter mounted at `/metrics`. Consult
+[`PROMETHEUS.md`](./PROMETHEUS.md) for deployment guidance, metric details, and
+scrape configuration examples.
+
 ## Python Ingestor
 
 The web app is not meant to be run locally connected to a Meshtastic node but rather
@@ -173,11 +202,14 @@ Post your nodes here:
 Docker images are published on Github for each release:
 
 ```bash
-docker pull ghcr.io/l5yth/potato-mesh/web:latest
+docker pull ghcr.io/l5yth/potato-mesh/web:latest    # newest release
+docker pull ghcr.io/l5yth/potato-mesh/web:v3.0      # pinned historical release
 docker pull ghcr.io/l5yth/potato-mesh/ingestor:latest
 ```
 
-See the [Docker guide](DOCKER.md) for more details and custome deployment instructions.
+Set `POTATOMESH_IMAGE_TAG` in your `.env` (or environment) to deploy a specific
+tagged release with Docker Compose. See the [Docker guide](DOCKER.md) for more
+details and custom deployment instructions.
 
 ## License
 

configure.sh

@@ -56,10 +56,14 @@ read_with_default() {
 update_env() {
     local key="$1"
     local value="$2"
-    
+    local escaped_value
+
+    # Escape characters that would break the sed replacement delimiter or introduce backreferences
+    escaped_value=$(printf '%s' "$value" | sed -e 's/[&|]/\\&/g')
+
     if grep -q "^$key=" .env; then
         # Update existing value
-        sed -i.bak "s/^$key=.*/$key=$value/" .env
+        sed -i.bak "s|^$key=.*|$key=$escaped_value|" .env
     else
         # Add new value
         echo "$key=$value" >> .env
@@ -70,12 +74,17 @@ update_env() {
 SITE_NAME=$(grep "^SITE_NAME=" .env 2>/dev/null | cut -d'=' -f2- | tr -d '"' || echo "PotatoMesh Demo")
 CHANNEL=$(grep "^CHANNEL=" .env 2>/dev/null | cut -d'=' -f2- | tr -d '"' || echo "#LongFast")
 FREQUENCY=$(grep "^FREQUENCY=" .env 2>/dev/null | cut -d'=' -f2- | tr -d '"' || echo "915MHz")
+FEDERATION=$(grep "^FEDERATION=" .env 2>/dev/null | cut -d'=' -f2- | tr -d '"' || echo "1")
+PRIVATE=$(grep "^PRIVATE=" .env 2>/dev/null | cut -d'=' -f2- | tr -d '"' || echo "0")
 MAP_CENTER=$(grep "^MAP_CENTER=" .env 2>/dev/null | cut -d'=' -f2- | tr -d '"' || echo "38.761944,-27.090833")
 MAX_DISTANCE=$(grep "^MAX_DISTANCE=" .env 2>/dev/null | cut -d'=' -f2- | tr -d '"' || echo "42")
 CONTACT_LINK=$(grep "^CONTACT_LINK=" .env 2>/dev/null | cut -d'=' -f2- | tr -d '"' || echo "#potatomesh:dod.ngo")
 API_TOKEN=$(grep "^API_TOKEN=" .env 2>/dev/null | cut -d'=' -f2- | tr -d '"' || echo "")
 POTATOMESH_IMAGE_ARCH=$(grep "^POTATOMESH_IMAGE_ARCH=" .env 2>/dev/null | cut -d'=' -f2- | tr -d '"' || echo "linux-amd64")
+POTATOMESH_IMAGE_TAG=$(grep "^POTATOMESH_IMAGE_TAG=" .env 2>/dev/null | cut -d'=' -f2- | tr -d '"' || echo "latest")
 INSTANCE_DOMAIN=$(grep "^INSTANCE_DOMAIN=" .env 2>/dev/null | cut -d'=' -f2- | tr -d '"' || echo "")
+DEBUG=$(grep "^DEBUG=" .env 2>/dev/null | cut -d'=' -f2- | tr -d '"' || echo "0")
+CONNECTION=$(grep "^CONNECTION=" .env 2>/dev/null | cut -d'=' -f2- | tr -d '"' || echo "/dev/ttyACM0")
 
 echo "📍 Location Settings"
 echo "-------------------"
@@ -93,12 +102,37 @@ echo ""
 echo "💬 Optional Settings"
 echo "-------------------"
 read_with_default "Chat link or Matrix room (optional)" "$CONTACT_LINK" CONTACT_LINK
+read_with_default "Debug logging (1=enabled, 0=disabled)" "$DEBUG" DEBUG
+
+echo ""
+echo "🤝 Federation Settings"
+echo "----------------------"
+echo "Federation shares instance metadata with other PotatoMesh deployments."
+echo "Set to 1 to enable discovery or 0 to keep your instance isolated."
+read_with_default "Enable federation (1=yes, 0=no)" "$FEDERATION" FEDERATION
+
+echo ""
+echo "🙈 Privacy Settings"
+echo "-------------------"
+echo "Private mode hides public mesh messages from unauthenticated visitors."
+echo "Set to 1 to hide public feeds or 0 to keep them visible."
+read_with_default "Enable private mode (1=yes, 0=no)" "$PRIVATE" PRIVATE
 
 echo ""
 echo "🛠 Docker Settings"
 echo "------------------"
 echo "Specify the Docker image architecture for your host (linux-amd64, linux-arm64, linux-armv7)."
 read_with_default "Docker image architecture" "$POTATOMESH_IMAGE_ARCH" POTATOMESH_IMAGE_ARCH
+echo "Enter the Docker image tag to deploy (use 'latest' for the newest release or pin a version such as v3.0)."
+read_with_default "Docker image tag (latest, vX.Y, etc.)" "$POTATOMESH_IMAGE_TAG" POTATOMESH_IMAGE_TAG
+
+echo ""
+echo "🔌 Ingestor Connection"
+echo "----------------------"
+echo "Define how the mesh ingestor connects to your Meshtastic device."
+echo "Use serial devices like /dev/ttyACM0, TCP endpoints such as tcp://host:port,"
+echo "or Bluetooth addresses when supported."
+read_with_default "Connection target" "$CONNECTION" CONNECTION
 
 echo ""
 echo "🌐 Domain Settings"
@@ -148,8 +182,13 @@ update_env "FREQUENCY" "\"$FREQUENCY\""
 update_env "MAP_CENTER" "\"$MAP_CENTER\""
 update_env "MAX_DISTANCE" "$MAX_DISTANCE"
 update_env "CONTACT_LINK" "\"$CONTACT_LINK\""
+update_env "DEBUG" "$DEBUG"
 update_env "API_TOKEN" "$API_TOKEN"
 update_env "POTATOMESH_IMAGE_ARCH" "$POTATOMESH_IMAGE_ARCH"
+update_env "POTATOMESH_IMAGE_TAG" "$POTATOMESH_IMAGE_TAG"
+update_env "FEDERATION" "$FEDERATION"
+update_env "PRIVATE" "$PRIVATE"
+update_env "CONNECTION" "$CONNECTION"
 if [ -n "$INSTANCE_DOMAIN" ]; then
     update_env "INSTANCE_DOMAIN" "$INSTANCE_DOMAIN"
 else
@@ -187,9 +226,18 @@ echo "   Max Distance: ${MAX_DISTANCE}km"
 echo "   Channel: $CHANNEL"
 echo "   Frequency: $FREQUENCY"
 echo "   Chat: ${CONTACT_LINK:-'Not set'}"
+echo "   Debug Logging: ${DEBUG}" 
+echo "   Connection: ${CONNECTION}"
 echo "   API Token: ${API_TOKEN:0:8}..."
 echo "   Docker Image Arch: $POTATOMESH_IMAGE_ARCH"
+echo "   Docker Image Tag: $POTATOMESH_IMAGE_TAG"
+echo "   Private Mode: ${PRIVATE}"
 echo "   Instance Domain: ${INSTANCE_DOMAIN:-'Auto-detected'}"
+if [ "${FEDERATION:-1}" = "0" ]; then
+    echo "   Federation: Disabled"
+else
+    echo "   Federation: Enabled"
+fi
 echo ""
 echo "🚀 You can now start PotatoMesh with:"
 echo "   docker-compose up -d"

data/mesh_ingestor/daemon.py

@@ -34,6 +34,7 @@ _RECEIVE_TOPICS = (
     "meshtastic.receive.NODEINFO_APP",
     "meshtastic.receive.NEIGHBORINFO_APP",
     "meshtastic.receive.TEXT_MESSAGE_APP",
+    "meshtastic.receive.REACTION_APP",
     "meshtastic.receive.TELEMETRY_APP",
 )
 
@@ -206,7 +207,7 @@ def _connected_state(candidate) -> bool | None:
         return None
 
 
-def main() -> None:
+def main(existing_interface=None) -> None:
     """Run the mesh ingestion daemon until interrupted."""
 
     subscribed = _subscribe_receive_topics()
@@ -218,7 +219,7 @@ def main() -> None:
             topics=subscribed,
         )
 
-    iface = None
+    iface = existing_interface
     resolved_target = None
     retry_delay = max(0.0, config._RECONNECT_INITIAL_DELAY_SECS)
 
@@ -254,8 +255,9 @@ def main() -> None:
             return
         stop.set()
 
-    signal.signal(signal.SIGINT, handle_sigint)
-    signal.signal(signal.SIGTERM, handle_sigterm)
+    if threading.current_thread() == threading.main_thread():
+        signal.signal(signal.SIGINT, handle_sigint)
+        signal.signal(signal.SIGTERM, handle_sigterm)
 
     target = config.INSTANCE or "(no POTATOMESH_INSTANCE)"
     configured_port = config.CONNECTION

data/mesh_ingestor/handlers.py

@@ -17,7 +17,10 @@
 from __future__ import annotations
 
 import base64
+import contextlib
+import importlib
 import json
+import sys
 import time
 from collections.abc import Mapping
 
@@ -460,6 +463,189 @@ def store_telemetry_packet(packet: Mapping, decoded: Mapping) -> None:
         )
     )
 
+    current = _coerce_float(
+        _first(
+            telemetry_section,
+            "current",
+            "deviceMetrics.current",
+            "deviceMetrics.current_ma",
+            "deviceMetrics.currentMa",
+            "environmentMetrics.current",
+            default=None,
+        )
+    )
+    gas_resistance = _coerce_float(
+        _first(
+            telemetry_section,
+            "gasResistance",
+            "gas_resistance",
+            "environmentMetrics.gasResistance",
+            "environmentMetrics.gas_resistance",
+            default=None,
+        )
+    )
+    iaq = _coerce_int(
+        _first(
+            telemetry_section,
+            "iaq",
+            "environmentMetrics.iaq",
+            "environmentMetrics.iaqIndex",
+            "environmentMetrics.iaq_index",
+            default=None,
+        )
+    )
+    distance = _coerce_float(
+        _first(
+            telemetry_section,
+            "distance",
+            "environmentMetrics.distance",
+            "environmentMetrics.range",
+            "environmentMetrics.rangeMeters",
+            default=None,
+        )
+    )
+    lux = _coerce_float(
+        _first(
+            telemetry_section,
+            "lux",
+            "environmentMetrics.lux",
+            "environmentMetrics.illuminance",
+            default=None,
+        )
+    )
+    white_lux = _coerce_float(
+        _first(
+            telemetry_section,
+            "whiteLux",
+            "white_lux",
+            "environmentMetrics.whiteLux",
+            "environmentMetrics.white_lux",
+            default=None,
+        )
+    )
+    ir_lux = _coerce_float(
+        _first(
+            telemetry_section,
+            "irLux",
+            "ir_lux",
+            "environmentMetrics.irLux",
+            "environmentMetrics.ir_lux",
+            default=None,
+        )
+    )
+    uv_lux = _coerce_float(
+        _first(
+            telemetry_section,
+            "uvLux",
+            "uv_lux",
+            "environmentMetrics.uvLux",
+            "environmentMetrics.uv_lux",
+            "environmentMetrics.uvIndex",
+            default=None,
+        )
+    )
+    wind_direction = _coerce_int(
+        _first(
+            telemetry_section,
+            "windDirection",
+            "wind_direction",
+            "environmentMetrics.windDirection",
+            "environmentMetrics.wind_direction",
+            default=None,
+        )
+    )
+    wind_speed = _coerce_float(
+        _first(
+            telemetry_section,
+            "windSpeed",
+            "wind_speed",
+            "environmentMetrics.windSpeed",
+            "environmentMetrics.wind_speed",
+            "environmentMetrics.windSpeedMps",
+            default=None,
+        )
+    )
+    wind_gust = _coerce_float(
+        _first(
+            telemetry_section,
+            "windGust",
+            "wind_gust",
+            "environmentMetrics.windGust",
+            "environmentMetrics.wind_gust",
+            default=None,
+        )
+    )
+    wind_lull = _coerce_float(
+        _first(
+            telemetry_section,
+            "windLull",
+            "wind_lull",
+            "environmentMetrics.windLull",
+            "environmentMetrics.wind_lull",
+            default=None,
+        )
+    )
+    weight = _coerce_float(
+        _first(
+            telemetry_section,
+            "weight",
+            "environmentMetrics.weight",
+            "environmentMetrics.mass",
+            default=None,
+        )
+    )
+    radiation = _coerce_float(
+        _first(
+            telemetry_section,
+            "radiation",
+            "environmentMetrics.radiation",
+            "environmentMetrics.radiationLevel",
+            default=None,
+        )
+    )
+    rainfall_1h = _coerce_float(
+        _first(
+            telemetry_section,
+            "rainfall1h",
+            "rainfall_1h",
+            "environmentMetrics.rainfall1h",
+            "environmentMetrics.rainfall_1h",
+            "environmentMetrics.rainfallOneHour",
+            default=None,
+        )
+    )
+    rainfall_24h = _coerce_float(
+        _first(
+            telemetry_section,
+            "rainfall24h",
+            "rainfall_24h",
+            "environmentMetrics.rainfall24h",
+            "environmentMetrics.rainfall_24h",
+            "environmentMetrics.rainfallTwentyFourHour",
+            default=None,
+        )
+    )
+    soil_moisture = _coerce_int(
+        _first(
+            telemetry_section,
+            "soilMoisture",
+            "soil_moisture",
+            "environmentMetrics.soilMoisture",
+            "environmentMetrics.soil_moisture",
+            default=None,
+        )
+    )
+    soil_temperature = _coerce_float(
+        _first(
+            telemetry_section,
+            "soilTemperature",
+            "soil_temperature",
+            "environmentMetrics.soilTemperature",
+            "environmentMetrics.soil_temperature",
+            default=None,
+        )
+    )
+
     telemetry_payload = {
         "id": pkt_id,
         "node_id": node_id,
@@ -494,6 +680,42 @@ def store_telemetry_packet(packet: Mapping, decoded: Mapping) -> None:
         telemetry_payload["relative_humidity"] = relative_humidity
     if barometric_pressure is not None:
         telemetry_payload["barometric_pressure"] = barometric_pressure
+    if current is not None:
+        telemetry_payload["current"] = current
+    if gas_resistance is not None:
+        telemetry_payload["gas_resistance"] = gas_resistance
+    if iaq is not None:
+        telemetry_payload["iaq"] = iaq
+    if distance is not None:
+        telemetry_payload["distance"] = distance
+    if lux is not None:
+        telemetry_payload["lux"] = lux
+    if white_lux is not None:
+        telemetry_payload["white_lux"] = white_lux
+    if ir_lux is not None:
+        telemetry_payload["ir_lux"] = ir_lux
+    if uv_lux is not None:
+        telemetry_payload["uv_lux"] = uv_lux
+    if wind_direction is not None:
+        telemetry_payload["wind_direction"] = wind_direction
+    if wind_speed is not None:
+        telemetry_payload["wind_speed"] = wind_speed
+    if wind_gust is not None:
+        telemetry_payload["wind_gust"] = wind_gust
+    if wind_lull is not None:
+        telemetry_payload["wind_lull"] = wind_lull
+    if weight is not None:
+        telemetry_payload["weight"] = weight
+    if radiation is not None:
+        telemetry_payload["radiation"] = radiation
+    if rainfall_1h is not None:
+        telemetry_payload["rainfall_1h"] = rainfall_1h
+    if rainfall_24h is not None:
+        telemetry_payload["rainfall_24h"] = rainfall_24h
+    if soil_moisture is not None:
+        telemetry_payload["soil_moisture"] = soil_moisture
+    if soil_temperature is not None:
+        telemetry_payload["soil_temperature"] = soil_temperature
 
     _queue_post_json(
         "/api/telemetry",
@@ -832,15 +1054,83 @@ def store_packet_dict(packet: Mapping) -> None:
         store_neighborinfo_packet(packet, decoded)
         return
 
-    text = _first(decoded, "payload.text", "text", default=None)
+    text = _first(decoded, "payload.text", "text", "data.text", default=None)
     encrypted = _first(decoded, "payload.encrypted", "encrypted", default=None)
     if encrypted is None:
         encrypted = _first(packet, "encrypted", default=None)
-    if not text and not encrypted:
+    reply_id_raw = _first(
+        decoded,
+        "payload.replyId",
+        "payload.reply_id",
+        "data.replyId",
+        "data.reply_id",
+        "replyId",
+        "reply_id",
+        default=None,
+    )
+    reply_id = _coerce_int(reply_id_raw)
+    emoji_raw = _first(
+        decoded,
+        "payload.emoji",
+        "data.emoji",
+        "emoji",
+        default=None,
+    )
+    emoji = None
+    if emoji_raw is not None:
+        try:
+            emoji_text = str(emoji_raw)
+        except Exception:
+            emoji_text = None
+        else:
+            emoji_text = emoji_text.strip()
+            if emoji_text:
+                emoji = emoji_text
+
+    encrypted_flag = _is_encrypted_flag(encrypted)
+    if not any([text, encrypted_flag, emoji is not None, reply_id is not None]):
         return
 
-    if portnum and portnum not in {"1", "TEXT_MESSAGE_APP"}:
-        return
+    allowed_port_values = {"1", "TEXT_MESSAGE_APP", "REACTION_APP"}
+    allowed_port_ints = {1}
+
+    reaction_port_candidates: set[int] = set()
+    for module_name in (
+        "meshtastic.portnums_pb2",
+        "meshtastic.protobuf.portnums_pb2",
+    ):
+        module = sys.modules.get(module_name)
+        if module is None:
+            with contextlib.suppress(ModuleNotFoundError):
+                module = importlib.import_module(module_name)
+        if module is None:
+            continue
+        portnum_enum = getattr(module, "PortNum", None)
+        value_lookup = getattr(portnum_enum, "Value", None) if portnum_enum else None
+        if callable(value_lookup):
+            with contextlib.suppress(Exception):
+                candidate = _coerce_int(value_lookup("REACTION_APP"))
+                if candidate is not None:
+                    reaction_port_candidates.add(candidate)
+        constant_value = getattr(module, "REACTION_APP", None)
+        candidate = _coerce_int(constant_value)
+        if candidate is not None:
+            reaction_port_candidates.add(candidate)
+
+    for candidate in reaction_port_candidates:
+        allowed_port_ints.add(candidate)
+        allowed_port_values.add(str(candidate))
+
+    is_reaction_packet = portnum == "REACTION_APP" or (
+        reply_id is not None and emoji is not None
+    )
+    if is_reaction_packet and portnum_int is not None:
+        allowed_port_ints.add(portnum_int)
+        allowed_port_values.add(str(portnum_int))
+
+    if portnum and portnum not in allowed_port_values:
+        if portnum_int not in allowed_port_ints:
+            return
 
     channel = _first(decoded, "channel", default=None)
     if channel is None:
@@ -874,6 +1164,25 @@ def store_packet_dict(packet: Mapping) -> None:
 
     encrypted_flag = _is_encrypted_flag(encrypted)
 
+    to_id_normalized = str(to_id).strip() if to_id is not None else ""
+
+    if (
+        not is_reaction_packet
+        and channel == 0
+        and not encrypted_flag
+        and to_id_normalized
+        and to_id_normalized.lower() != "^all"
+    ):
+        if config.DEBUG:
+            config._debug_log(
+                "Skipped direct message on primary channel",
+                context="handlers.store_packet_dict",
+                from_id=_canonical_node_id(from_id) or from_id,
+                to_id=_canonical_node_id(to_id) or to_id,
+                channel=channel,
+            )
+        return
+
     message_payload = {
         "id": int(pkt_id),
         "rx_time": rx_time,
@@ -887,6 +1196,8 @@ def store_packet_dict(packet: Mapping) -> None:
         "snr": float(snr) if snr is not None else None,
         "rssi": int(rssi) if rssi is not None else None,
         "hop_limit": int(hop) if hop is not None else None,
+        "reply_id": reply_id,
+        "emoji": emoji,
     }
 
     channel_name_value = None

data/mesh_ingestor/serialization.py

@@ -22,6 +22,8 @@ from __future__ import annotations
 
 import base64
 import dataclasses
+import enum
+import importlib
 import json
 import math
 import time
@@ -31,6 +33,18 @@ from google.protobuf.json_format import MessageToDict
 from google.protobuf.message import DecodeError
 from google.protobuf.message import Message as ProtoMessage
 
+_CLI_ROLE_MODULE_NAMES: tuple[str, ...] = (
+    "meshtastic.cli.common",
+    "meshtastic.cli.roles",
+    "meshtastic.cli.enums",
+    "meshtastic_cli.common",
+    "meshtastic_cli.roles",
+)
+"""Possible module paths that may expose the Meshtastic CLI role enum."""
+
+_CLI_ROLE_LOOKUP: dict[int, str] | None = None
+"""Cached mapping of CLI role identifiers to their textual names."""
+
 
 def _get(obj, key, default=None):
     """Return ``obj[key]`` or ``getattr(obj, key)`` when available.
@@ -49,6 +63,96 @@ def _get(obj, key, default=None):
     return getattr(obj, key, default)
 
 
+def _reset_cli_role_cache() -> None:
+    """Clear the cached CLI role lookup mapping.
+
+    The helper is primarily used by tests to ensure deterministic behaviour
+    when substituting stub CLI modules.
+
+    Returns:
+        ``None``. The next lookup will trigger a fresh import attempt.
+    """
+
+    global _CLI_ROLE_LOOKUP
+    _CLI_ROLE_LOOKUP = None
+
+
+def _load_cli_role_lookup() -> dict[int, str]:
+    """Return a mapping of role identifiers from the Meshtastic CLI.
+
+    The Meshtastic CLI exposes extended role enums that may include entries
+    absent from the protobuf definition shipped with the firmware. This
+    helper lazily imports the CLI module when present and extracts the
+    available role names so that numeric values received from the firmware can
+    be normalised into human-friendly strings.
+
+    Returns:
+        Mapping of integer role identifiers to their canonical string names.
+    """
+
+    global _CLI_ROLE_LOOKUP
+    if _CLI_ROLE_LOOKUP is not None:
+        return _CLI_ROLE_LOOKUP
+
+    lookup: dict[int, str] = {}
+
+    def _from_candidate(candidate) -> dict[int, str]:
+        mapping: dict[int, str] = {}
+        if isinstance(candidate, enum.EnumMeta):
+            for member in candidate:  # pragma: no branch - Enum iteration deterministic
+                try:
+                    mapping[int(member.value)] = str(member.name)
+                except Exception:  # pragma: no cover - defensive guard
+                    continue
+            return mapping
+        members = getattr(candidate, "__members__", None)
+        if isinstance(members, Mapping):
+            for name, member in members.items():
+                value = getattr(member, "value", None)
+                if isinstance(value, (int, enum.IntEnum)):
+                    try:
+                        mapping[int(value)] = str(name)
+                    except Exception:  # pragma: no cover - defensive
+                        continue
+            if mapping:
+                return mapping
+        if isinstance(candidate, Mapping):
+            for key, value in candidate.items():
+                try:
+                    key_int = int(key)
+                except Exception:  # pragma: no cover - defensive
+                    continue
+                mapping[key_int] = str(value)
+        return mapping
+
+    for module_name in _CLI_ROLE_MODULE_NAMES:
+        try:
+            module = importlib.import_module(module_name)
+        except Exception:  # pragma: no cover - optional dependency
+            continue
+
+        candidates = []
+        for attr_name in ("Role", "Roles", "ClientRole", "ClientRoles"):
+            candidate = getattr(module, attr_name, None)
+            if candidate is not None:
+                candidates.append(candidate)
+
+        for candidate in candidates:
+            mapping = _from_candidate(candidate)
+            if not mapping:
+                continue
+            lookup.update(mapping)
+        if lookup:
+            break
+
+    _CLI_ROLE_LOOKUP = {
+        key: value.strip().upper()
+        for key, value in lookup.items()
+        if isinstance(value, str) and value.strip()
+    }
+    return _CLI_ROLE_LOOKUP
+
+
 def _node_to_dict(n) -> dict:
     """Convert ``n`` into a JSON-serialisable mapping.
 
@@ -99,6 +203,57 @@ def _node_to_dict(n) -> dict:
     return _convert(n)
 
 
+def _normalize_user_role(value) -> str | None:
+    """Return a canonical role string for ``value`` when possible.
+
+    Parameters:
+        value: Raw role descriptor emitted by the Meshtastic firmware or
+            decoded JSON payloads.
+
+    Returns:
+        Uppercase role string or ``None`` if the value cannot be resolved.
+    """
+
+    if value is None:
+        return None
+
+    if isinstance(value, str):
+        cleaned = value.strip()
+        if not cleaned:
+            return None
+        return cleaned.upper()
+
+    numeric = _coerce_int(value)
+    if numeric is None:
+        return None
+
+    role_name = None
+
+    cli_lookup = _load_cli_role_lookup()
+    role_name = cli_lookup.get(numeric)
+
+    if not role_name:
+        try:  # pragma: no branch - minimal control flow
+            from meshtastic.protobuf import mesh_pb2
+
+            role_name = mesh_pb2.User.Role.Name(numeric)
+        except Exception:  # pragma: no cover - depends on protobuf version
+            role_name = None
+
+    if not role_name:
+        try:
+            from meshtastic.protobuf import config_pb2
+
+            role_name = config_pb2.Config.DeviceConfig.Role.Name(numeric)
+        except Exception:  # pragma: no cover - depends on protobuf version
+            role_name = None
+
+    if role_name:
+        return role_name.strip().upper()
+
+    return str(numeric)
+
+
 def upsert_payload(node_id, node) -> dict:
     """Return the payload expected by ``/api/nodes`` upsert requests.
 
@@ -120,7 +275,7 @@ def _iso(ts: int | float) -> str:
     import datetime
 
     return (
-        datetime.datetime.fromtimestamp(int(ts), datetime.UTC)
+        datetime.datetime.fromtimestamp(int(ts), datetime.timezone.utc)
         .isoformat()
         .replace("+00:00", "Z")
     )
@@ -587,6 +742,11 @@ def _nodeinfo_user_dict(node_info, decoded_user):
         if canonical:
             user_dict = dict(user_dict)
             user_dict["id"] = canonical
+        role_value = user_dict.get("role")
+        normalized_role = _normalize_user_role(role_value)
+        if normalized_role and normalized_role != role_value:
+            user_dict = dict(user_dict)
+            user_dict["role"] = normalized_role
     return user_dict
 
 
@@ -594,6 +754,8 @@ __all__ = [
     "_canonical_node_id",
     "_coerce_float",
     "_coerce_int",
+    "_load_cli_role_lookup",
+    "_normalize_user_role",
     "_decode_nodeinfo_payload",
     "_extract_payload_bytes",
     "_first",
@@ -606,6 +768,7 @@ __all__ = [
     "_nodeinfo_position_dict",
     "_nodeinfo_user_dict",
     "_pkt_to_dict",
+    "_reset_cli_role_cache",
     "DecodeError",
     "MessageToDict",
     "ProtoMessage",

data/messages.sql

@@ -27,7 +27,9 @@ CREATE TABLE IF NOT EXISTS messages (
     hop_limit INTEGER,
     lora_freq INTEGER,
     modem_preset TEXT,
-    channel_name TEXT
+    channel_name TEXT,
+    reply_id INTEGER,
+    emoji TEXT
 );
 
 CREATE INDEX IF NOT EXISTS idx_messages_rx_time   ON messages(rx_time);
@@ -35,3 +37,4 @@ CREATE INDEX IF NOT EXISTS idx_messages_from_id   ON messages(from_id);
 CREATE INDEX IF NOT EXISTS idx_messages_to_id     ON messages(to_id);
 CREATE INDEX IF NOT EXISTS idx_messages_channel   ON messages(channel);
 CREATE INDEX IF NOT EXISTS idx_messages_portnum   ON messages(portnum);
+CREATE INDEX IF NOT EXISTS idx_messages_reply_id  ON messages(reply_id);

data/migrations/20250305_extend_environment_telemetry.sql

@@ -0,0 +1,35 @@
+-- Copyright (C) 2025 l5yth
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+-- Extend the telemetry table with additional environment metrics.
+BEGIN;
+ALTER TABLE telemetry ADD COLUMN gas_resistance REAL;
+ALTER TABLE telemetry ADD COLUMN current REAL;
+ALTER TABLE telemetry ADD COLUMN iaq INTEGER;
+ALTER TABLE telemetry ADD COLUMN distance REAL;
+ALTER TABLE telemetry ADD COLUMN lux REAL;
+ALTER TABLE telemetry ADD COLUMN white_lux REAL;
+ALTER TABLE telemetry ADD COLUMN ir_lux REAL;
+ALTER TABLE telemetry ADD COLUMN uv_lux REAL;
+ALTER TABLE telemetry ADD COLUMN wind_direction INTEGER;
+ALTER TABLE telemetry ADD COLUMN wind_speed REAL;
+ALTER TABLE telemetry ADD COLUMN weight REAL;
+ALTER TABLE telemetry ADD COLUMN wind_gust REAL;
+ALTER TABLE telemetry ADD COLUMN wind_lull REAL;
+ALTER TABLE telemetry ADD COLUMN radiation REAL;
+ALTER TABLE telemetry ADD COLUMN rainfall_1h REAL;
+ALTER TABLE telemetry ADD COLUMN rainfall_24h REAL;
+ALTER TABLE telemetry ADD COLUMN soil_moisture INTEGER;
+ALTER TABLE telemetry ADD COLUMN soil_temperature REAL;
+COMMIT;

data/migrations/20250310_add_message_reply_and_emoji_columns.sql

@@ -0,0 +1,20 @@
+-- Copyright (C) 2025 l5yth
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+-- Extend the messages table to capture reply relationships and emoji reactions.
+BEGIN;
+ALTER TABLE messages ADD COLUMN reply_id INTEGER;
+ALTER TABLE messages ADD COLUMN emoji TEXT;
+CREATE INDEX IF NOT EXISTS idx_messages_reply_id ON messages(reply_id);
+COMMIT;

data/telemetry.sql

@@ -35,7 +35,25 @@ CREATE TABLE IF NOT EXISTS telemetry (
     uptime_seconds          INTEGER,
     temperature             REAL,
     relative_humidity       REAL,
-    barometric_pressure     REAL
+    barometric_pressure     REAL,
+    gas_resistance          REAL,
+    current                 REAL,
+    iaq                     INTEGER,
+    distance                REAL,
+    lux                     REAL,
+    white_lux               REAL,
+    ir_lux                  REAL,
+    uv_lux                  REAL,
+    wind_direction          INTEGER,
+    wind_speed              REAL,
+    weight                  REAL,
+    wind_gust               REAL,
+    wind_lull               REAL,
+    radiation               REAL,
+    rainfall_1h             REAL,
+    rainfall_24h            REAL,
+    soil_moisture           INTEGER,
+    soil_temperature        REAL
 );
 
 CREATE INDEX IF NOT EXISTS idx_telemetry_rx_time ON telemetry(rx_time);

docker-compose.yml

@@ -1,5 +1,5 @@
 x-web-base: &web-base
-  image: ghcr.io/l5yth/potato-mesh-web-${POTATOMESH_IMAGE_ARCH:-linux-amd64}:latest
+  image: ghcr.io/l5yth/potato-mesh-web-${POTATOMESH_IMAGE_ARCH:-linux-amd64}:${POTATOMESH_IMAGE_TAG:-latest}
   environment:
     APP_ENV: ${APP_ENV:-production}
     RACK_ENV: ${RACK_ENV:-production}
@@ -9,6 +9,8 @@ x-web-base: &web-base
     MAP_CENTER: ${MAP_CENTER:-38.761944,-27.090833}
     MAX_DISTANCE: ${MAX_DISTANCE:-42}
     CONTACT_LINK: ${CONTACT_LINK:-#potatomesh:dod.ngo}
+    FEDERATION: ${FEDERATION:-1}
+    PRIVATE: ${PRIVATE:-0}
     API_TOKEN: ${API_TOKEN}
     INSTANCE_DOMAIN: ${INSTANCE_DOMAIN}
     DEBUG: ${DEBUG:-0}
@@ -28,7 +30,7 @@ x-web-base: &web-base
         cpus: '0.25'
 
 x-ingestor-base: &ingestor-base
-  image: ghcr.io/l5yth/potato-mesh-ingestor-${POTATOMESH_IMAGE_ARCH:-linux-amd64}:latest
+  image: ghcr.io/l5yth/potato-mesh-ingestor-${POTATOMESH_IMAGE_ARCH:-linux-amd64}:${POTATOMESH_IMAGE_TAG:-latest}
   environment:
     CONNECTION: ${CONNECTION:-/dev/ttyACM0}
     CHANNEL_INDEX: ${CHANNEL_INDEX:-0}
@@ -36,6 +38,8 @@ x-ingestor-base: &ingestor-base
     API_TOKEN: ${API_TOKEN}
     INSTANCE_DOMAIN: ${INSTANCE_DOMAIN}
     DEBUG: ${DEBUG:-0}
+    FEDERATION: ${FEDERATION:-1}
+    PRIVATE: ${PRIVATE:-0}
   volumes:
     - potatomesh_data:/app/.local/share/potato-mesh
     - potatomesh_config:/app/.config/potato-mesh

tests/telemetry.json

@@ -12,12 +12,31 @@
     "battery_level": 101,
     "bitfield": 1,
     "payload_b64": "DTVr0mgSFQhlFQIrh0AdJb8YPyXYFSA9KJTPEg==",
+    "current": 0.0715,
+    "gas_resistance": 1456.0,
+    "iaq": 83,
+    "distance": 12.5,
+    "lux": 100.25,
+    "white_lux": 64.5,
+    "ir_lux": 12.75,
+    "uv_lux": 1.6,
+    "wind_direction": 270,
+    "wind_speed": 5.9,
+    "wind_gust": 7.4,
+    "wind_lull": 4.8,
+    "weight": 32.7,
+    "radiation": 0.45,
+    "rainfall_1h": 0.18,
+    "rainfall_24h": 1.42,
+    "soil_moisture": 3100,
+    "soil_temperature": 18.9,
     "device_metrics": {
       "batteryLevel": 101,
       "voltage": 4.224,
       "channelUtilization": 0.59666663,
       "airUtilTx": 0.03908333,
-      "uptimeSeconds": 305044
+      "uptimeSeconds": 305044,
+      "current": 0.0715
     },
     "raw": {
       "device_metrics": {
@@ -43,7 +62,24 @@
     "environment_metrics": {
       "temperature": 21.98,
       "relativeHumidity": 39.475586,
-      "barometricPressure": 1017.8353
+      "barometricPressure": 1017.8353,
+      "gasResistance": 1456.0,
+      "iaq": 83,
+      "distance": 12.5,
+      "lux": 100.25,
+      "whiteLux": 64.5,
+      "irLux": 12.75,
+      "uvLux": 1.6,
+      "windDirection": 270,
+      "windSpeed": 5.9,
+      "windGust": 7.4,
+      "windLull": 4.8,
+      "weight": 32.7,
+      "radiation": 0.45,
+      "rainfall1h": 0.18,
+      "rainfall24h": 1.42,
+      "soilMoisture": 3100,
+      "soilTemperature": 18.9
     },
     "raw": {
       "environment_metrics": {
@@ -70,7 +106,22 @@
       "voltage": 3.92,
       "channel_utilization": 0.284,
       "air_util_tx": 0.051,
-      "uptime_seconds": 86400
+      "uptime_seconds": 86400,
+      "current": 0.033
+    },
+    "environment_metrics": {
+      "temperature": 19.5,
+      "relative_humidity": 48.2,
+      "barometric_pressure": 1013.1,
+      "distance": 7.25,
+      "lux": 75.5,
+      "whiteLux": 40.0,
+      "windDirection": 180,
+      "windSpeed": 4.3,
+      "weight": 28.4,
+      "rainfall24h": 0.75,
+      "soilMoisture": 2850,
+      "soilTemperature": 17.1
     },
     "local_stats": {
       "numPacketsTx": 1280,

tests/test_mesh.py

@@ -13,6 +13,7 @@
 # limitations under the License.
 
 import base64
+import enum
 import importlib
 import re
 import sys
@@ -601,11 +602,53 @@ def test_store_packet_dict_posts_text_message(mesh_module, monkeypatch):
     assert payload["hop_limit"] == 3
     assert payload["snr"] == pytest.approx(1.25)
     assert payload["rssi"] == -70
+    assert payload["reply_id"] is None
+    assert payload["emoji"] is None
     assert payload["lora_freq"] == 868
     assert payload["modem_preset"] == "MediumFast"
     assert priority == mesh._MESSAGE_POST_PRIORITY
 
 
+def test_store_packet_dict_posts_reaction_message(mesh_module, monkeypatch):
+    mesh = mesh_module
+    captured = []
+    monkeypatch.setattr(
+        mesh,
+        "_queue_post_json",
+        lambda path, payload, *, priority: captured.append((path, payload, priority)),
+    )
+
+    packet = {
+        "id": 999,
+        "rxTime": 1_700_100_000,
+        "fromId": "!reply",
+        "toId": "!root",
+        "decoded": {
+            "portnum": "REACTION_APP",
+            "data": {
+                "reply_id": "123",
+                "emoji": " 👍 ",
+            },
+        },
+    }
+
+    mesh.store_packet_dict(packet)
+
+    assert captured, "Expected POST to be triggered for reaction message"
+    path, payload, priority = captured[0]
+    assert path == "/api/messages"
+    assert payload["id"] == 999
+    assert payload["from_id"] == "!reply"
+    assert payload["to_id"] == "!root"
+    assert payload["portnum"] == "REACTION_APP"
+    assert payload["text"] is None
+    assert payload["reply_id"] == 123
+    assert payload["emoji"] == "👍"
+    assert payload["rx_time"] == 1_700_100_000
+    assert payload["rx_iso"] == mesh._iso(1_700_100_000)
+    assert priority == mesh._MESSAGE_POST_PRIORITY
+
+
 def test_store_packet_dict_posts_position(mesh_module, monkeypatch):
     mesh = mesh_module
     captured = []
@@ -1453,6 +1496,65 @@ def test_store_packet_dict_handles_invalid_channel(mesh_module, monkeypatch):
     assert priority == mesh._MESSAGE_POST_PRIORITY
 
 
+def test_store_packet_dict_skips_direct_message_on_primary_channel(
+    mesh_module, monkeypatch
+):
+    mesh = mesh_module
+    captured = []
+    monkeypatch.setattr(
+        mesh,
+        "_queue_post_json",
+        lambda path, payload, *, priority: captured.append((path, payload, priority)),
+    )
+
+    packet = {
+        "id": 111,
+        "rxTime": 777,
+        "fromId": "!sender",
+        "toId": "!recipient",
+        "channel": 0,
+        "decoded": {"text": "secret dm", "portnum": "TEXT_MESSAGE_APP"},
+    }
+
+    mesh.store_packet_dict(packet)
+
+    assert not captured
+
+
+def test_store_packet_dict_allows_primary_channel_broadcast(mesh_module, monkeypatch):
+    mesh = mesh_module
+    captured = []
+    monkeypatch.setattr(
+        mesh,
+        "_queue_post_json",
+        lambda path, payload, *, priority: captured.append((path, payload, priority)),
+    )
+
+    mesh.config.LORA_FREQ = 915
+    mesh.config.MODEM_PRESET = "LongSlow"
+
+    packet = {
+        "id": 222,
+        "rxTime": 888,
+        "from": "!relay",
+        "to": "^all",
+        "channel": 0,
+        "decoded": {"text": "announcement", "portnum": "TEXT_MESSAGE_APP"},
+    }
+
+    mesh.store_packet_dict(packet)
+
+    assert captured
+    path, payload, priority = captured[0]
+    assert path == "/api/messages"
+    assert payload["text"] == "announcement"
+    assert payload["to_id"] == "^all"
+    assert payload["channel"] == 0
+    assert payload["lora_freq"] == 915
+    assert payload["modem_preset"] == "LongSlow"
+    assert priority == mesh._MESSAGE_POST_PRIORITY
+
+
 def test_store_packet_dict_appends_channel_name(mesh_module, monkeypatch, capsys):
     mesh = mesh_module
     mesh.channels._reset_channel_cache()
@@ -1504,6 +1606,8 @@ def test_store_packet_dict_appends_channel_name(mesh_module, monkeypatch, capsys
     assert payload["channel"] == 5
     assert payload["text"] == "hi"
     assert payload["encrypted"] is None
+    assert payload["reply_id"] is None
+    assert payload["emoji"] is None
     assert priority == mesh._MESSAGE_POST_PRIORITY
 
     log_output = capsys.readouterr().out
@@ -1541,6 +1645,8 @@ def test_store_packet_dict_includes_encrypted_payload(mesh_module, monkeypatch):
     assert payload["text"] is None
     assert payload["from_id"] == 2988082812
     assert payload["to_id"] == "!receiver"
+    assert payload["reply_id"] is None
+    assert payload["emoji"] is None
     assert "channel_name" not in payload
     assert payload["lora_freq"] == 868
     assert payload["modem_preset"] == "MediumFast"
@@ -1575,6 +1681,7 @@ def test_store_packet_dict_handles_telemetry_packet(mesh_module, monkeypatch):
                     "channelUtilization": 0.59666663,
                     "airUtilTx": 0.03908333,
                     "uptimeSeconds": 305044,
+                    "current": 0.0715,
                 },
                 "localStats": {
                     "numPacketsTx": 1280,
@@ -1606,6 +1713,7 @@ def test_store_packet_dict_handles_telemetry_packet(mesh_module, monkeypatch):
     assert payload["channel_utilization"] == pytest.approx(0.59666663)
     assert payload["air_util_tx"] == pytest.approx(0.03908333)
     assert payload["uptime_seconds"] == 305044
+    assert payload["current"] == pytest.approx(0.0715)
     assert payload["lora_freq"] == 868
     assert payload["modem_preset"] == "MediumFast"
 
@@ -1634,6 +1742,23 @@ def test_store_packet_dict_handles_environment_telemetry(mesh_module, monkeypatc
                     "temperature": 21.98,
                     "relativeHumidity": 39.475586,
                     "barometricPressure": 1017.8353,
+                    "gasResistance": 1456.0,
+                    "iaq": 83,
+                    "distance": 12.5,
+                    "lux": 100.25,
+                    "whiteLux": 64.5,
+                    "irLux": 12.75,
+                    "uvLux": 1.6,
+                    "windDirection": 270,
+                    "windSpeed": 5.9,
+                    "windGust": 7.4,
+                    "windLull": 4.8,
+                    "weight": 32.7,
+                    "radiation": 0.45,
+                    "rainfall1h": 0.18,
+                    "rainfall24h": 1.42,
+                    "soilMoisture": 3100,
+                    "soilTemperature": 18.9,
                 },
             },
         },
@@ -1651,6 +1776,23 @@ def test_store_packet_dict_handles_environment_telemetry(mesh_module, monkeypatc
     assert payload["temperature"] == pytest.approx(21.98)
     assert payload["relative_humidity"] == pytest.approx(39.475586)
     assert payload["barometric_pressure"] == pytest.approx(1017.8353)
+    assert payload["gas_resistance"] == pytest.approx(1456.0)
+    assert payload["iaq"] == 83
+    assert payload["distance"] == pytest.approx(12.5)
+    assert payload["lux"] == pytest.approx(100.25)
+    assert payload["white_lux"] == pytest.approx(64.5)
+    assert payload["ir_lux"] == pytest.approx(12.75)
+    assert payload["uv_lux"] == pytest.approx(1.6)
+    assert payload["wind_direction"] == 270
+    assert payload["wind_speed"] == pytest.approx(5.9)
+    assert payload["wind_gust"] == pytest.approx(7.4)
+    assert payload["wind_lull"] == pytest.approx(4.8)
+    assert payload["weight"] == pytest.approx(32.7)
+    assert payload["radiation"] == pytest.approx(0.45)
+    assert payload["rainfall_1h"] == pytest.approx(0.18)
+    assert payload["rainfall_24h"] == pytest.approx(1.42)
+    assert payload["soil_moisture"] == 3100
+    assert payload["soil_temperature"] == pytest.approx(18.9)
     assert payload["lora_freq"] == 868
     assert payload["modem_preset"] == "MediumFast"
 
@@ -2155,6 +2297,44 @@ def test_nodeinfo_helpers_cover_fallbacks(mesh_module, monkeypatch):
     assert user["id"] == "!11223344"
 
 
+def test_nodeinfo_user_role_falls_back_to_cli_enum(mesh_module, monkeypatch):
+    mesh = mesh_module
+    mesh._reset_cli_role_cache()
+
+    cli_module = types.ModuleType("meshtastic.cli")
+    cli_common = types.ModuleType("meshtastic.cli.common")
+
+    class DummyRole(enum.IntEnum):
+        CLIENT = 0
+        CLIENT_BASE = 12
+
+    cli_common.Role = DummyRole
+    cli_module.common = cli_common
+
+    monkeypatch.setitem(sys.modules, "meshtastic.cli", cli_module)
+    monkeypatch.setitem(sys.modules, "meshtastic.cli.common", cli_common)
+
+    user = mesh._nodeinfo_user_dict(None, {"id": "!11223344", "role": 12})
+
+    assert user["role"] == "CLIENT_BASE"
+
+    mesh._reset_cli_role_cache()
+
+    cli_dict_module = types.ModuleType("meshtastic.cli")
+    cli_dict_common = types.ModuleType("meshtastic.cli.common")
+    cli_dict_common.ClientRoles = {12: "client_hidden"}
+    cli_dict_module.common = cli_dict_common
+
+    monkeypatch.setitem(sys.modules, "meshtastic.cli", cli_dict_module)
+    monkeypatch.setitem(sys.modules, "meshtastic.cli.common", cli_dict_common)
+
+    user = mesh._nodeinfo_user_dict(None, {"id": "!11223344", "role": 12})
+
+    assert user["role"] == "CLIENT_HIDDEN"
+
+    mesh._reset_cli_role_cache()
+
+
 def test_store_position_packet_defaults(mesh_module, monkeypatch):
     mesh = mesh_module
     captured = []

web/Gemfile

@@ -15,6 +15,7 @@
 source "https://rubygems.org"
 
 gem "sinatra", "~> 4.0"
+gem "erb", "~> 4.0"
 gem "sqlite3", "~> 1.7"
 gem "rackup", "~> 2.2"
 gem "puma", "~> 7.0"

web/app.sh

@@ -18,4 +18,4 @@ set -euo pipefail
 
 bundle install
 
-exec ruby app.rb -p 41447 -o 0.0.0.0
+exec bundle exec ruby app.rb -p 41447 -o 0.0.0.0

web/lib/potato_mesh/application.rb

@@ -43,6 +43,7 @@ require_relative "application/errors"
 require_relative "application/database"
 require_relative "application/networking"
 require_relative "application/identity"
+require_relative "application/worker_pool"
 require_relative "application/federation"
 require_relative "application/prometheus"
 require_relative "application/queries"
@@ -100,18 +101,37 @@ module PotatoMesh
       logger.level = PotatoMesh::Config.debug? ? Logger::DEBUG : Logger::WARN
     end
 
-    # Determine the port the application should listen on.
+    # Determine the port the application should listen on by honouring the
+    # conventional +PORT+ environment variable used by hosting platforms. Any
+    # non-numeric or out-of-range values fall back to the provided default to
+    # keep the application bootable in misconfigured environments.
     #
-    # @param default_port [Integer] fallback port when ENV['PORT'] is absent or invalid.
+    # @param default_port [Integer] fallback port when +ENV['PORT']+ is absent or invalid.
     # @return [Integer] port number for the HTTP server.
     def self.resolve_port(default_port: DEFAULT_PORT)
-      default_port
+      raw_port = ENV["PORT"]
+      return default_port if raw_port.nil?
+
+      trimmed = raw_port.to_s.strip
+      return default_port if trimmed.empty?
+
+      begin
+        port = Integer(trimmed, 10)
+      rescue ArgumentError
+        return default_port
+      end
+
+      return default_port unless port.positive?
+      return default_port unless PotatoMesh::Sanitizer.valid_port?(trimmed)
+
+      port
     end
 
     configure do
       set :public_folder, File.expand_path("../../public", __dir__)
       set :views, File.expand_path("../../views", __dir__)
       set :federation_thread, nil
+      set :federation_worker_pool, nil
       set :port, resolve_port
       set :bind, DEFAULT_BIND_ADDRESS
 
@@ -135,6 +155,12 @@ module PotatoMesh
       ensure_self_instance_record!
       update_all_prometheus_metrics_from_nodes
 
+      if federation_enabled?
+        ensure_federation_worker_pool!
+      else
+        shutdown_federation_worker_pool!
+      end
+
       if federation_announcements_active?
         start_initial_federation_announcement!
         start_federation_announcer!

web/lib/potato_mesh/application/data_processing.rb

@@ -731,6 +731,50 @@ module PotatoMesh
         end
       end
 
+      # Resolve a telemetry metric from the provided data sources.
+      #
+      # @param key_map [Hash{Symbol=>Array<String>}] ordered mapping of source names to candidate keys.
+      # @param sources [Hash{Symbol=>Hash}] data structures to search for metric values.
+      # @param type [Symbol] coercion strategy, ``:float`` or ``:integer``.
+      # @return [Numeric, nil] coerced metric value or nil when no candidates exist.
+      def resolve_numeric_metric(key_map, sources, type)
+        key_map.each do |source, keys|
+          next if keys.nil? || keys.empty?
+
+          data = sources[source]
+          next unless data.is_a?(Hash)
+
+          keys.each do |name|
+            next if name.nil?
+
+            key = name.to_s
+            value = if data.key?(key)
+                data[key]
+              else
+                sym_key = key.to_sym
+                data.key?(sym_key) ? data[sym_key] : nil
+              end
+
+            next if value.nil?
+
+            coerced = case type
+              when :float
+                coerce_float(value)
+              when :integer
+                coerce_integer(value)
+              else
+                value
+              end
+
+            return coerced unless coerced.nil?
+          end
+        end
+
+        nil
+      end
+
+      private :resolve_numeric_metric
+
       def insert_telemetry(db, payload)
         return unless payload.is_a?(Hash)
 
@@ -776,54 +820,285 @@ module PotatoMesh
         environment_metrics = normalize_json_object(payload["environment_metrics"] || payload["environmentMetrics"])
         environment_metrics ||= normalize_json_object(telemetry_section["environmentMetrics"]) if telemetry_section&.key?("environmentMetrics")
 
-        fetch_metric = lambda do |map, *names|
-          next nil unless map.is_a?(Hash)
-          names.each do |name|
-            next unless name
-            key = name.to_s
-            return map[key] if map.key?(key)
-          end
-          nil
+        sources = {
+          payload: payload,
+          telemetry: telemetry_section,
+          device: device_metrics,
+          environment: environment_metrics,
+        }
+
+        metric_definitions = [
+          [
+            "battery_level",
+            :float,
+            {
+              payload: %w[battery_level batteryLevel],
+              telemetry: %w[batteryLevel],
+              device: %w[battery_level batteryLevel],
+              environment: %w[battery_level batteryLevel],
+            },
+          ],
+          [
+            "voltage",
+            :float,
+            {
+              payload: %w[voltage],
+              telemetry: %w[voltage],
+              device: %w[voltage],
+              environment: %w[voltage],
+            },
+          ],
+          [
+            "channel_utilization",
+            :float,
+            {
+              payload: %w[channel_utilization channelUtilization],
+              telemetry: %w[channelUtilization],
+              device: %w[channel_utilization channelUtilization],
+            },
+          ],
+          [
+            "air_util_tx",
+            :float,
+            {
+              payload: %w[air_util_tx airUtilTx],
+              telemetry: %w[airUtilTx],
+              device: %w[air_util_tx airUtilTx],
+            },
+          ],
+          [
+            "uptime_seconds",
+            :integer,
+            {
+              payload: %w[uptime_seconds uptimeSeconds],
+              telemetry: %w[uptimeSeconds],
+              device: %w[uptime_seconds uptimeSeconds],
+            },
+          ],
+          [
+            "temperature",
+            :float,
+            {
+              payload: %w[temperature temperatureC tempC],
+              telemetry: %w[temperature temperatureC tempC],
+              environment: %w[temperature temperatureC temperature_c tempC],
+            },
+          ],
+          [
+            "relative_humidity",
+            :float,
+            {
+              payload: %w[relative_humidity relativeHumidity humidity],
+              telemetry: %w[relative_humidity relativeHumidity humidity],
+              environment: %w[relative_humidity relativeHumidity humidity],
+            },
+          ],
+          [
+            "barometric_pressure",
+            :float,
+            {
+              payload: %w[barometric_pressure barometricPressure pressure],
+              telemetry: %w[barometric_pressure barometricPressure pressure],
+              environment: %w[barometric_pressure barometricPressure pressure],
+            },
+          ],
+          [
+            "gas_resistance",
+            :float,
+            {
+              payload: %w[gas_resistance gasResistance],
+              telemetry: %w[gas_resistance gasResistance],
+              environment: %w[gas_resistance gasResistance],
+            },
+          ],
+          [
+            "current",
+            :float,
+            {
+              payload: %w[current current_ma currentMa],
+              telemetry: %w[current current_ma currentMa],
+              device: %w[current current_ma currentMa],
+              environment: %w[current],
+            },
+          ],
+          [
+            "iaq",
+            :integer,
+            {
+              payload: %w[iaq iaqIndex iaq_index],
+              telemetry: %w[iaq iaqIndex iaq_index],
+              environment: %w[iaq iaqIndex iaq_index],
+            },
+          ],
+          [
+            "distance",
+            :float,
+            {
+              payload: %w[distance range rangeMeters],
+              telemetry: %w[distance range rangeMeters],
+              environment: %w[distance range rangeMeters],
+            },
+          ],
+          [
+            "lux",
+            :float,
+            {
+              payload: %w[lux illuminance lightLux],
+              telemetry: %w[lux illuminance lightLux],
+              environment: %w[lux illuminance lightLux],
+            },
+          ],
+          [
+            "white_lux",
+            :float,
+            {
+              payload: %w[white_lux whiteLux],
+              telemetry: %w[white_lux whiteLux],
+              environment: %w[white_lux whiteLux],
+            },
+          ],
+          [
+            "ir_lux",
+            :float,
+            {
+              payload: %w[ir_lux irLux],
+              telemetry: %w[ir_lux irLux],
+              environment: %w[ir_lux irLux],
+            },
+          ],
+          [
+            "uv_lux",
+            :float,
+            {
+              payload: %w[uv_lux uvLux uvIndex],
+              telemetry: %w[uv_lux uvLux uvIndex],
+              environment: %w[uv_lux uvLux uvIndex],
+            },
+          ],
+          [
+            "wind_direction",
+            :integer,
+            {
+              payload: %w[wind_direction windDirection],
+              telemetry: %w[wind_direction windDirection],
+              environment: %w[wind_direction windDirection],
+            },
+          ],
+          [
+            "wind_speed",
+            :float,
+            {
+              payload: %w[wind_speed windSpeed windSpeedMps],
+              telemetry: %w[wind_speed windSpeed windSpeedMps],
+              environment: %w[wind_speed windSpeed windSpeedMps],
+            },
+          ],
+          [
+            "weight",
+            :float,
+            {
+              payload: %w[weight mass],
+              telemetry: %w[weight mass],
+              environment: %w[weight mass],
+            },
+          ],
+          [
+            "wind_gust",
+            :float,
+            {
+              payload: %w[wind_gust windGust],
+              telemetry: %w[wind_gust windGust],
+              environment: %w[wind_gust windGust],
+            },
+          ],
+          [
+            "wind_lull",
+            :float,
+            {
+              payload: %w[wind_lull windLull],
+              telemetry: %w[wind_lull windLull],
+              environment: %w[wind_lull windLull],
+            },
+          ],
+          [
+            "radiation",
+            :float,
+            {
+              payload: %w[radiation radiationLevel],
+              telemetry: %w[radiation radiationLevel],
+              environment: %w[radiation radiationLevel],
+            },
+          ],
+          [
+            "rainfall_1h",
+            :float,
+            {
+              payload: %w[rainfall_1h rainfall1h rainfallOneHour],
+              telemetry: %w[rainfall_1h rainfall1h rainfallOneHour],
+              environment: %w[rainfall_1h rainfall1h rainfallOneHour],
+            },
+          ],
+          [
+            "rainfall_24h",
+            :float,
+            {
+              payload: %w[rainfall_24h rainfall24h rainfallTwentyFourHour],
+              telemetry: %w[rainfall_24h rainfall24h rainfallTwentyFourHour],
+              environment: %w[rainfall_24h rainfall24h rainfallTwentyFourHour],
+            },
+          ],
+          [
+            "soil_moisture",
+            :integer,
+            {
+              payload: %w[soil_moisture soilMoisture],
+              telemetry: %w[soil_moisture soilMoisture],
+              environment: %w[soil_moisture soilMoisture],
+            },
+          ],
+          [
+            "soil_temperature",
+            :float,
+            {
+              payload: %w[soil_temperature soilTemperature],
+              telemetry: %w[soil_temperature soilTemperature],
+              environment: %w[soil_temperature soilTemperature],
+            },
+          ],
+        ]
+
+        metric_values = {}
+        metric_definitions.each do |column, type, key_map|
+          value = resolve_numeric_metric(key_map, sources, type)
+          metric_values[column] = value unless value.nil?
         end
 
-        battery_level = payload.key?("battery_level") ? payload["battery_level"] : nil
-        battery_level = coerce_float(battery_level)
-        battery_level ||= coerce_float(fetch_metric.call(device_metrics, :battery_level, :batteryLevel))
-
-        voltage = payload.key?("voltage") ? payload["voltage"] : nil
-        voltage = coerce_float(voltage)
-        voltage ||= coerce_float(fetch_metric.call(device_metrics, :voltage))
-
-        channel_utilization = payload.key?("channel_utilization") ? payload["channel_utilization"] : nil
-        channel_utilization ||= payload["channelUtilization"] if payload.key?("channelUtilization")
-        channel_utilization = coerce_float(channel_utilization)
-        channel_utilization ||= coerce_float(fetch_metric.call(device_metrics, :channel_utilization, :channelUtilization))
-
-        air_util_tx = payload.key?("air_util_tx") ? payload["air_util_tx"] : nil
-        air_util_tx ||= payload["airUtilTx"] if payload.key?("airUtilTx")
-        air_util_tx = coerce_float(air_util_tx)
-        air_util_tx ||= coerce_float(fetch_metric.call(device_metrics, :air_util_tx, :airUtilTx))
-
-        uptime_seconds = payload.key?("uptime_seconds") ? payload["uptime_seconds"] : nil
-        uptime_seconds ||= payload["uptimeSeconds"] if payload.key?("uptimeSeconds")
-        uptime_seconds = coerce_integer(uptime_seconds)
-        uptime_seconds ||= coerce_integer(fetch_metric.call(device_metrics, :uptime_seconds, :uptimeSeconds))
-
-        temperature = payload.key?("temperature") ? payload["temperature"] : nil
-        temperature = coerce_float(temperature)
-        temperature ||= coerce_float(fetch_metric.call(environment_metrics, :temperature, :temperatureC, :temperature_c, :tempC))
-
-        relative_humidity = payload.key?("relative_humidity") ? payload["relative_humidity"] : nil
-        relative_humidity ||= payload["relativeHumidity"] if payload.key?("relativeHumidity")
-        relative_humidity ||= payload["humidity"] if payload.key?("humidity")
-        relative_humidity = coerce_float(relative_humidity)
-        relative_humidity ||= coerce_float(fetch_metric.call(environment_metrics, :relative_humidity, :relativeHumidity, :humidity))
-
-        barometric_pressure = payload.key?("barometric_pressure") ? payload["barometric_pressure"] : nil
-        barometric_pressure ||= payload["barometricPressure"] if payload.key?("barometricPressure")
-        barometric_pressure ||= payload["pressure"] if payload.key?("pressure")
-        barometric_pressure = coerce_float(barometric_pressure)
-        barometric_pressure ||= coerce_float(fetch_metric.call(environment_metrics, :barometric_pressure, :barometricPressure, :pressure))
+        battery_level = metric_values["battery_level"]
+        voltage = metric_values["voltage"]
+        channel_utilization = metric_values["channel_utilization"]
+        air_util_tx = metric_values["air_util_tx"]
+        uptime_seconds = metric_values["uptime_seconds"]
+        temperature = metric_values["temperature"]
+        relative_humidity = metric_values["relative_humidity"]
+        barometric_pressure = metric_values["barometric_pressure"]
+        gas_resistance = metric_values["gas_resistance"]
+        current = metric_values["current"]
+        iaq = metric_values["iaq"]
+        distance = metric_values["distance"]
+        lux = metric_values["lux"]
+        white_lux = metric_values["white_lux"]
+        ir_lux = metric_values["ir_lux"]
+        uv_lux = metric_values["uv_lux"]
+        wind_direction = metric_values["wind_direction"]
+        wind_speed = metric_values["wind_speed"]
+        weight = metric_values["weight"]
+        wind_gust = metric_values["wind_gust"]
+        wind_lull = metric_values["wind_lull"]
+        radiation = metric_values["radiation"]
+        rainfall_1h = metric_values["rainfall_1h"]
+        rainfall_24h = metric_values["rainfall_24h"]
+        soil_moisture = metric_values["soil_moisture"]
+        soil_temperature = metric_values["soil_temperature"]
 
         row = [
           telemetry_id,
@@ -849,13 +1124,33 @@ module PotatoMesh
           temperature,
           relative_humidity,
           barometric_pressure,
+          gas_resistance,
+          current,
+          iaq,
+          distance,
+          lux,
+          white_lux,
+          ir_lux,
+          uv_lux,
+          wind_direction,
+          wind_speed,
+          weight,
+          wind_gust,
+          wind_lull,
+          radiation,
+          rainfall_1h,
+          rainfall_24h,
+          soil_moisture,
+          soil_temperature,
         ]
 
+        placeholders = Array.new(row.length, "?").join(",")
+
         with_busy_retry do
           db.execute <<~SQL, row
                        INSERT INTO telemetry(id,node_id,node_num,from_id,to_id,rx_time,rx_iso,telemetry_time,channel,portnum,hop_limit,snr,rssi,bitfield,payload_b64,
-                                             battery_level,voltage,channel_utilization,air_util_tx,uptime_seconds,temperature,relative_humidity,barometric_pressure)
-                       VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)
+                                             battery_level,voltage,channel_utilization,air_util_tx,uptime_seconds,temperature,relative_humidity,barometric_pressure,gas_resistance,current,iaq,distance,lux,white_lux,ir_lux,uv_lux,wind_direction,wind_speed,weight,wind_gust,wind_lull,radiation,rainfall_1h,rainfall_24h,soil_moisture,soil_temperature)
+                       VALUES (#{placeholders})
                        ON CONFLICT(id) DO UPDATE SET
                          node_id=COALESCE(excluded.node_id,telemetry.node_id),
                          node_num=COALESCE(excluded.node_num,telemetry.node_num),
@@ -878,7 +1173,25 @@ module PotatoMesh
                          uptime_seconds=COALESCE(excluded.uptime_seconds,telemetry.uptime_seconds),
                          temperature=COALESCE(excluded.temperature,telemetry.temperature),
                          relative_humidity=COALESCE(excluded.relative_humidity,telemetry.relative_humidity),
-                         barometric_pressure=COALESCE(excluded.barometric_pressure,telemetry.barometric_pressure)
+                         barometric_pressure=COALESCE(excluded.barometric_pressure,telemetry.barometric_pressure),
+                         gas_resistance=COALESCE(excluded.gas_resistance,telemetry.gas_resistance),
+                         current=COALESCE(excluded.current,telemetry.current),
+                         iaq=COALESCE(excluded.iaq,telemetry.iaq),
+                         distance=COALESCE(excluded.distance,telemetry.distance),
+                         lux=COALESCE(excluded.lux,telemetry.lux),
+                         white_lux=COALESCE(excluded.white_lux,telemetry.white_lux),
+                         ir_lux=COALESCE(excluded.ir_lux,telemetry.ir_lux),
+                         uv_lux=COALESCE(excluded.uv_lux,telemetry.uv_lux),
+                         wind_direction=COALESCE(excluded.wind_direction,telemetry.wind_direction),
+                         wind_speed=COALESCE(excluded.wind_speed,telemetry.wind_speed),
+                         weight=COALESCE(excluded.weight,telemetry.weight),
+                         wind_gust=COALESCE(excluded.wind_gust,telemetry.wind_gust),
+                         wind_lull=COALESCE(excluded.wind_lull,telemetry.wind_lull),
+                         radiation=COALESCE(excluded.radiation,telemetry.radiation),
+                         rainfall_1h=COALESCE(excluded.rainfall_1h,telemetry.rainfall_1h),
+                         rainfall_24h=COALESCE(excluded.rainfall_24h,telemetry.rainfall_24h),
+                         soil_moisture=COALESCE(excluded.soil_moisture,telemetry.soil_moisture),
+                         soil_temperature=COALESCE(excluded.soil_temperature,telemetry.soil_temperature)
                      SQL
         end
 
@@ -949,6 +1262,8 @@ module PotatoMesh
         lora_freq = coerce_integer(message["lora_freq"] || message["loraFrequency"])
         modem_preset = string_or_nil(message["modem_preset"] || message["modemPreset"])
         channel_name = string_or_nil(message["channel_name"] || message["channelName"])
+        reply_id = coerce_integer(message["reply_id"] || message["replyId"])
+        emoji = string_or_nil(message["emoji"])
 
         row = [
           msg_id,
@@ -966,11 +1281,13 @@ module PotatoMesh
           lora_freq,
           modem_preset,
           channel_name,
+          reply_id,
+          emoji,
         ]
 
         with_busy_retry do
           existing = db.get_first_row(
-            "SELECT from_id, to_id, encrypted, lora_freq, modem_preset, channel_name FROM messages WHERE id = ?",
+            "SELECT from_id, to_id, encrypted, lora_freq, modem_preset, channel_name, reply_id, emoji FROM messages WHERE id = ?",
             [msg_id],
           )
           if existing
@@ -1021,6 +1338,19 @@ module PotatoMesh
               updates["channel_name"] = channel_name if should_update
             end
 
+            unless reply_id.nil?
+              existing_reply = existing.is_a?(Hash) ? existing["reply_id"] : existing[6]
+              updates["reply_id"] = reply_id if existing_reply != reply_id
+            end
+
+            if emoji
+              existing_emoji = existing.is_a?(Hash) ? existing["emoji"] : existing[7]
+              existing_emoji_str = existing_emoji&.to_s
+              should_update = existing_emoji_str.nil? || existing_emoji_str.strip.empty?
+              should_update ||= existing_emoji != emoji
+              updates["emoji"] = emoji if should_update
+            end
+
             unless updates.empty?
               assignments = updates.keys.map { |column| "#{column} = ?" }.join(", ")
               db.execute("UPDATE messages SET #{assignments} WHERE id = ?", updates.values + [msg_id])
@@ -1030,8 +1360,8 @@ module PotatoMesh
 
             begin
               db.execute <<~SQL, row
-                           INSERT INTO messages(id,rx_time,rx_iso,from_id,to_id,channel,portnum,text,encrypted,snr,rssi,hop_limit,lora_freq,modem_preset,channel_name)
-                           VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)
+                           INSERT INTO messages(id,rx_time,rx_iso,from_id,to_id,channel,portnum,text,encrypted,snr,rssi,hop_limit,lora_freq,modem_preset,channel_name,reply_id,emoji)
+                           VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)
                          SQL
             rescue SQLite3::ConstraintException
               fallback_updates = {}
@@ -1041,6 +1371,8 @@ module PotatoMesh
               fallback_updates["lora_freq"] = lora_freq unless lora_freq.nil?
               fallback_updates["modem_preset"] = modem_preset if modem_preset
               fallback_updates["channel_name"] = channel_name if channel_name
+              fallback_updates["reply_id"] = reply_id unless reply_id.nil?
+              fallback_updates["emoji"] = emoji if emoji
               unless fallback_updates.empty?
                 assignments = fallback_updates.keys.map { |column| "#{column} = ?" }.join(", ")
                 db.execute("UPDATE messages SET #{assignments} WHERE id = ?", fallback_updates.values + [msg_id])

web/lib/potato_mesh/application/database.rb

@@ -15,6 +15,30 @@
 module PotatoMesh
   module App
     module Database
+      # Column definitions required for environment telemetry support. Each
+      # entry pairs the column name with the SQL type used when backfilling
+      # legacy databases that pre-date the extended telemetry schema.
+      TELEMETRY_COLUMN_DEFINITIONS = [
+        ["gas_resistance", "REAL"],
+        ["current", "REAL"],
+        ["iaq", "INTEGER"],
+        ["distance", "REAL"],
+        ["lux", "REAL"],
+        ["white_lux", "REAL"],
+        ["ir_lux", "REAL"],
+        ["uv_lux", "REAL"],
+        ["wind_direction", "INTEGER"],
+        ["wind_speed", "REAL"],
+        ["weight", "REAL"],
+        ["wind_gust", "REAL"],
+        ["wind_lull", "REAL"],
+        ["radiation", "REAL"],
+        ["rainfall_1h", "REAL"],
+        ["rainfall_24h", "REAL"],
+        ["soil_moisture", "INTEGER"],
+        ["soil_temperature", "REAL"],
+      ].freeze
+
       # Open a connection to the application database applying common pragmas.
       #
       # @param readonly [Boolean] whether to open the database in read-only mode.
@@ -114,11 +138,44 @@ module PotatoMesh
           db.execute("ALTER TABLE messages ADD COLUMN channel_name TEXT")
         end
 
+        unless message_columns.include?("reply_id")
+          db.execute("ALTER TABLE messages ADD COLUMN reply_id INTEGER")
+          message_columns << "reply_id"
+        end
+
+        unless message_columns.include?("emoji")
+          db.execute("ALTER TABLE messages ADD COLUMN emoji TEXT")
+          message_columns << "emoji"
+        end
+
+        reply_index_exists =
+          db.get_first_value(
+            "SELECT COUNT(*) FROM sqlite_master WHERE type='index' AND name='idx_messages_reply_id'",
+          ).to_i > 0
+        unless reply_index_exists
+          db.execute("CREATE INDEX IF NOT EXISTS idx_messages_reply_id ON messages(reply_id)")
+        end
+
         tables = db.execute("SELECT name FROM sqlite_master WHERE type='table' AND name='instances'").flatten
         if tables.empty?
           sql_file = File.expand_path("../../../../data/instances.sql", __dir__)
           db.execute_batch(File.read(sql_file))
         end
+
+        telemetry_tables =
+          db.execute("SELECT name FROM sqlite_master WHERE type='table' AND name='telemetry'").flatten
+        if telemetry_tables.empty?
+          telemetry_schema = File.expand_path("../../../../data/telemetry.sql", __dir__)
+          db.execute_batch(File.read(telemetry_schema))
+        end
+
+        telemetry_columns = db.execute("PRAGMA table_info(telemetry)").map { |row| row[1] }
+        TELEMETRY_COLUMN_DEFINITIONS.each do |name, type|
+          next if telemetry_columns.include?(name)
+
+          db.execute("ALTER TABLE telemetry ADD COLUMN #{name} #{type}")
+          telemetry_columns << name
+        end
       rescue SQLite3::SQLException, Errno::ENOENT => e
         warn_log(
           "Failed to apply schema upgrade",

web/lib/potato_mesh/application/federation.rb

@@ -15,10 +15,25 @@
 module PotatoMesh
   module App
     module Federation
+      # Resolve the canonical domain for the running instance.
+      #
+      # @return [String, nil] sanitized instance domain or nil outside production.
+      # @raise [RuntimeError] when the domain cannot be determined in production.
       def self_instance_domain
         sanitized = sanitize_instance_domain(app_constant(:INSTANCE_DOMAIN))
         return sanitized if sanitized
 
+        unless production_environment?
+          debug_log(
+            "INSTANCE_DOMAIN unavailable; skipping self instance domain",
+            context: "federation.instances",
+            app_env: string_or_nil(ENV["APP_ENV"]),
+            rack_env: string_or_nil(ENV["RACK_ENV"]),
+            source: app_constant(:INSTANCE_DOMAIN_SOURCE),
+          )
+          return nil
+        end
+
         raise "INSTANCE_DOMAIN could not be determined"
       end
 
@@ -111,6 +126,61 @@ module PotatoMesh
         db&.close
       end
 
+      # Retrieve or initialize the worker pool servicing federation jobs.
+      #
+      # @return [PotatoMesh::App::WorkerPool, nil] active worker pool or nil when disabled.
+      def federation_worker_pool
+        ensure_federation_worker_pool!
+      end
+
+      # Ensure the federation worker pool exists when federation remains enabled.
+      #
+      # @return [PotatoMesh::App::WorkerPool, nil] active worker pool if created.
+      def ensure_federation_worker_pool!
+        return nil unless federation_enabled?
+
+        existing = settings.respond_to?(:federation_worker_pool) ? settings.federation_worker_pool : nil
+        return existing if existing&.alive?
+
+        pool = PotatoMesh::App::WorkerPool.new(
+          size: PotatoMesh::Config.federation_worker_pool_size,
+          max_queue: PotatoMesh::Config.federation_worker_queue_capacity,
+          name: "potato-mesh-fed",
+        )
+
+        at_exit do
+          begin
+            pool.shutdown(timeout: PotatoMesh::Config.federation_task_timeout_seconds)
+          rescue StandardError
+            # Suppress shutdown errors during interpreter teardown.
+          end
+        end
+
+        set(:federation_worker_pool, pool) if respond_to?(:set)
+        pool
+      end
+
+      # Shutdown and clear the federation worker pool if present.
+      #
+      # @return [void]
+      def shutdown_federation_worker_pool!
+        existing = settings.respond_to?(:federation_worker_pool) ? settings.federation_worker_pool : nil
+        return unless existing
+
+        begin
+          existing.shutdown(timeout: PotatoMesh::Config.federation_task_timeout_seconds)
+        rescue StandardError => e
+          warn_log(
+            "Failed to shut down federation worker pool",
+            context: "federation",
+            error_class: e.class.name,
+            error_message: e.message,
+          )
+        ensure
+          set(:federation_worker_pool, nil) if respond_to?(:set)
+        end
+      end
+
       def federation_target_domains(self_domain)
         normalized_self = sanitize_instance_domain(self_domain)&.downcase
         ordered = []
@@ -128,10 +198,17 @@ module PotatoMesh
 
         db = open_database(readonly: true)
         db.results_as_hash = false
-        rows = with_busy_retry {
-          db.execute("SELECT domain FROM instances WHERE domain IS NOT NULL AND TRIM(domain) != ''")
-        }
-        rows.flatten.compact.each do |raw_domain|
+        cutoff = Time.now.to_i - PotatoMesh::Config.week_seconds
+        rows = with_busy_retry do
+          db.execute(
+            "SELECT domain, last_update_time FROM instances WHERE domain IS NOT NULL AND TRIM(domain) != ''",
+          )
+        end
+        rows.each do |row|
+          raw_domain = row[0]
+          last_update_time = coerce_integer(row[1])
+          next unless last_update_time && last_update_time >= cutoff
+
           sanitized = sanitize_instance_domain(raw_domain)&.downcase
           next unless sanitized
           next if normalized_self && sanitized == normalized_self
@@ -162,8 +239,7 @@ module PotatoMesh
           begin
             http = build_remote_http_client(uri)
             response = http.start do |connection|
-              request = Net::HTTP::Post.new(uri)
-              request["Content-Type"] = "application/json"
+              request = build_federation_http_request(Net::HTTP::Post, uri)
               request.body = payload_json
               connection.request(request)
             end
@@ -237,9 +313,39 @@ module PotatoMesh
         attributes, signature = ensure_self_instance_record!
         payload_json = JSON.generate(instance_announcement_payload(attributes, signature))
         domains = federation_target_domains(attributes[:domain])
+        pool = federation_worker_pool
+        scheduled = []
+
         domains.each do |domain|
+          if pool
+            begin
+              task = pool.schedule do
+                announce_instance_to_domain(domain, payload_json)
+              end
+              scheduled << [domain, task]
+              next
+            rescue PotatoMesh::App::WorkerPool::QueueFullError
+              warn_log(
+                "Skipped asynchronous federation announcement",
+                context: "federation.announce",
+                domain: domain,
+                reason: "worker queue saturated",
+              )
+            rescue PotatoMesh::App::WorkerPool::ShutdownError
+              warn_log(
+                "Worker pool unavailable, falling back to synchronous announcement",
+                context: "federation.announce",
+                domain: domain,
+              )
+              pool = nil
+            end
+          end
+
           announce_instance_to_domain(domain, payload_json)
         end
+
+        wait_for_federation_tasks(scheduled)
+
         unless domains.empty?
           debug_log(
             "Federation announcement cycle complete",
@@ -249,7 +355,42 @@ module PotatoMesh
         end
       end
 
+      # Wait for scheduled federation tasks to complete while logging failures.
+      #
+      # @param scheduled [Array<(String, PotatoMesh::App::WorkerPool::Task)>] pairs of domains and tasks.
+      # @return [void]
+      def wait_for_federation_tasks(scheduled)
+        return if scheduled.empty?
+
+        timeout = PotatoMesh::Config.federation_task_timeout_seconds
+        scheduled.each do |domain, task|
+          begin
+            task.wait(timeout: timeout)
+          rescue PotatoMesh::App::WorkerPool::TaskTimeoutError => e
+            warn_log(
+              "Federation announcement task timed out",
+              context: "federation.announce",
+              domain: domain,
+              timeout: timeout,
+              error_class: e.class.name,
+              error_message: e.message,
+            )
+          rescue StandardError => e
+            warn_log(
+              "Federation announcement task failed",
+              context: "federation.announce",
+              domain: domain,
+              error_class: e.class.name,
+              error_message: e.message,
+            )
+          end
+        end
+      end
+
       def start_federation_announcer!
+        # Federation broadcasts must not execute when federation support is disabled.
+        return nil unless federation_enabled?
+
         existing = settings.federation_thread
         return existing if existing&.alive?
 
@@ -277,6 +418,9 @@ module PotatoMesh
       #
       # @return [Thread, nil] the thread handling the initial announcement.
       def start_initial_federation_announcement!
+        # Skip the initial broadcast entirely when federation is disabled.
+        return nil unless federation_enabled?
+
         existing = settings.respond_to?(:initial_federation_thread) ? settings.initial_federation_thread : nil
         return existing if existing&.alive?
 
@@ -343,7 +487,8 @@ module PotatoMesh
       def perform_instance_http_request(uri)
         http = build_remote_http_client(uri)
         http.start do |connection|
-          response = connection.request(Net::HTTP::Get.new(uri))
+          request = build_federation_http_request(Net::HTTP::Get, uri)
+          response = connection.request(request)
           case response
           when Net::HTTPSuccess
             response.body
@@ -355,6 +500,32 @@ module PotatoMesh
         raise_instance_fetch_error(e)
       end
 
+      # Build an HTTP request decorated with the headers required for federation peers.
+      #
+      # @param request_class [Class<Net::HTTPRequest>] HTTP request class such as {Net::HTTP::Get}.
+      # @param uri [URI::Generic] target URI describing the remote endpoint.
+      # @return [Net::HTTPRequest] configured HTTP request including standard headers.
+      def build_federation_http_request(request_class, uri)
+        request = request_class.new(uri)
+        request["User-Agent"] = federation_user_agent_header
+        request["Accept"] = "application/json"
+        request["Content-Type"] = "application/json" if request.request_body_permitted?
+        request
+      end
+
+      # Compose the User-Agent string used when communicating with federation peers.
+      #
+      # @return [String] descriptive identifier for PotatoMesh federation requests.
+      def federation_user_agent_header
+        version = app_constant(:APP_VERSION).to_s
+        version = "unknown" if version.empty?
+        sanitized_domain = sanitize_instance_domain(app_constant(:INSTANCE_DOMAIN), downcase: true)
+        base = "PotatoMesh/#{version}"
+        return base unless sanitized_domain && !sanitized_domain.empty?
+
+        "#{base} (+https://#{sanitized_domain})"
+      end
+
       # Build a human readable error message for a failed instance request.
       #
       # @param error [StandardError] failure raised while performing the request.
@@ -445,6 +616,58 @@ module PotatoMesh
         [nil, nil, e.message]
       end
 
+      # Enqueue a federation crawl for the supplied domain using the worker pool.
+      #
+      # @param domain [String] sanitized remote domain to crawl.
+      # @param per_response_limit [Integer, nil] maximum entries processed per response.
+      # @param overall_limit [Integer, nil] maximum unique domains visited.
+      # @return [Boolean] true when the crawl was scheduled successfully.
+      def enqueue_federation_crawl(domain, per_response_limit:, overall_limit:)
+        pool = federation_worker_pool
+        unless pool
+          debug_log(
+            "Skipped remote instance crawl",
+            context: "federation.instances",
+            domain: domain,
+            reason: "federation disabled",
+          )
+          return false
+        end
+
+        application = is_a?(Class) ? self : self.class
+        pool.schedule do
+          db = application.open_database
+          begin
+            application.ingest_known_instances_from!(
+              db,
+              domain,
+              per_response_limit: per_response_limit,
+              overall_limit: overall_limit,
+            )
+          ensure
+            db&.close
+          end
+        end
+
+        true
+      rescue PotatoMesh::App::WorkerPool::QueueFullError
+        warn_log(
+          "Skipped remote instance crawl",
+          context: "federation.instances",
+          domain: domain,
+          reason: "worker queue saturated",
+        )
+        false
+      rescue PotatoMesh::App::WorkerPool::ShutdownError
+        warn_log(
+          "Skipped remote instance crawl",
+          context: "federation.instances",
+          domain: domain,
+          reason: "worker pool shut down",
+        )
+        false
+      end
+
       # Recursively ingest federation records exposed by the supplied domain.
       #
       # @param db [SQLite3::Database] open database connection used for writes.

web/lib/potato_mesh/application/helpers.rb

@@ -123,6 +123,7 @@ module PotatoMesh
           maxDistanceKm: PotatoMesh::Config.max_distance_km,
           tileFilters: PotatoMesh::Config.tile_filters,
           instanceDomain: app_constant(:INSTANCE_DOMAIN),
+          instancesFeatureEnabled: federation_enabled? && !private_mode?,
         }
       end
 
@@ -323,7 +324,7 @@ module PotatoMesh
       #
       # @return [Boolean] true when PRIVATE=1.
       def private_mode?
-        ENV["PRIVATE"] == "1"
+        PotatoMesh::Config.private_mode_enabled?
       end
 
       # Identify whether the Rack environment corresponds to the test suite.
@@ -333,11 +334,21 @@ module PotatoMesh
         ENV["RACK_ENV"] == "test"
       end
 
+      # Determine whether the application is running in a production environment.
+      #
+      # @return [Boolean] true when APP_ENV or RACK_ENV resolves to "production".
+      def production_environment?
+        app_env = string_or_nil(ENV["APP_ENV"])&.downcase
+        rack_env = string_or_nil(ENV["RACK_ENV"])&.downcase
+
+        app_env == "production" || rack_env == "production"
+      end
+
       # Determine whether federation features should be active.
       #
       # @return [Boolean] true when federation configuration allows it.
       def federation_enabled?
-        ENV.fetch("FEDERATION", "1") != "0" && !private_mode?
+        PotatoMesh::Config.federation_enabled?
       end
 
       # Determine whether federation announcements should run asynchronously.

web/lib/potato_mesh/application/instances.rb

@@ -158,7 +158,8 @@ module PotatoMesh
       end
 
       # Fetch all instance rows ready to be served by the API while handling
-      # malformed rows gracefully.
+      # malformed rows gracefully. The dataset is restricted to records updated
+      # within the rolling window defined by PotatoMesh::Config.week_seconds.
       #
       # @return [Array<Hash>] list of cleaned instance payloads.
       def load_instances_for_api
@@ -166,22 +167,30 @@ module PotatoMesh
 
         db = open_database(readonly: true)
         db.results_as_hash = true
+        now = Time.now.to_i
+        min_last_update_time = now - PotatoMesh::Config.week_seconds
+        sql = <<~SQL
+          SELECT id, domain, pubkey, name, version, channel, frequency,
+                 latitude, longitude, last_update_time, is_private, signature
+          FROM instances
+          WHERE domain IS NOT NULL AND TRIM(domain) != ''
+            AND pubkey IS NOT NULL AND TRIM(pubkey) != ''
+            AND last_update_time IS NOT NULL AND last_update_time >= ?
+          ORDER BY LOWER(domain)
+        SQL
+
         rows = with_busy_retry do
-          db.execute(
-            <<~SQL
-              SELECT id, domain, pubkey, name, version, channel, frequency,
-                     latitude, longitude, last_update_time, is_private, signature
-              FROM instances
-              WHERE domain IS NOT NULL AND TRIM(domain) != ''
-                AND pubkey IS NOT NULL AND TRIM(pubkey) != ''
-              ORDER BY LOWER(domain)
-            SQL
-          )
+          db.execute(sql, min_last_update_time)
         end
 
         rows.each_with_object([]) do |row, memo|
           normalized = normalize_instance_row(row)
-          memo << normalized if normalized
+          next unless normalized
+
+          last_update_time = normalized["lastUpdateTime"]
+          next unless last_update_time.is_a?(Integer) && last_update_time >= min_last_update_time
+
+          memo << normalized
         end
       rescue SQLite3::Exception => e
         warn_log(

web/lib/potato_mesh/application/queries.rb

@@ -17,6 +17,33 @@ module PotatoMesh
     module Queries
       MAX_QUERY_LIMIT = 1000
 
+      # Remove nil or empty values from an API response hash to reduce payload size.
+      # Integer keys emitted by SQLite are ignored because the JSON representation
+      # only exposes symbolic keys. Strings containing only whitespace are treated
+      # as empty to mirror sanitisation elsewhere in the application.
+      #
+      # @param row [Hash] raw database row to compact.
+      # @return [Hash] cleaned hash without blank values.
+      def compact_api_row(row)
+        return {} unless row.is_a?(Hash)
+
+        row.each_with_object({}) do |(key, value), acc|
+          next if key.is_a?(Integer)
+          next if value.nil?
+
+          if value.is_a?(String)
+            trimmed = value.strip
+            next if trimmed.empty?
+            acc[key] = value
+            next
+          end
+
+          next if value.respond_to?(:empty?) && value.empty?
+
+          acc[key] = value
+        end
+      end
+
       # Normalise a caller-provided limit to a sane, positive integer.
       #
       # @param limit [Object] value coerced to an integer.
@@ -179,7 +206,7 @@ module PotatoMesh
           pb = r["precision_bits"]
           r["precision_bits"] = pb.to_i if pb
         end
-        rows
+        rows.map { |row| compact_api_row(row) }
       ensure
         db&.close
       end
@@ -189,7 +216,9 @@ module PotatoMesh
         db = open_database(readonly: true)
         db.results_as_hash = true
         params = []
-        where_clauses = ["COALESCE(TRIM(m.encrypted), '') = ''"]
+        where_clauses = [
+          "(COALESCE(TRIM(m.text), '') != '' OR COALESCE(TRIM(m.encrypted), '') != '' OR m.reply_id IS NOT NULL OR COALESCE(TRIM(m.emoji), '') != '')",
+        ]
         now = Time.now.to_i
         min_rx_time = now - PotatoMesh::Config.week_seconds
         where_clauses << "m.rx_time >= ?"
@@ -205,7 +234,8 @@ module PotatoMesh
         sql = <<~SQL
           SELECT m.id, m.rx_time, m.rx_iso, m.from_id, m.to_id, m.channel,
                  m.portnum, m.text, m.encrypted, m.rssi, m.hop_limit,
-                 m.lora_freq, m.modem_preset, m.channel_name, m.snr
+                 m.lora_freq, m.modem_preset, m.channel_name, m.snr,
+                 m.reply_id, m.emoji
           FROM messages m
         SQL
         sql += "    WHERE #{where_clauses.join(" AND ")}\n"
@@ -217,6 +247,8 @@ module PotatoMesh
         rows = db.execute(sql, params)
         rows.each do |r|
           r.delete_if { |key, _| key.is_a?(Integer) }
+          r["reply_id"] = coerce_integer(r["reply_id"]) if r.key?("reply_id")
+          r["emoji"] = string_or_nil(r["emoji"]) if r.key?("emoji")
           if PotatoMesh::Config.debug? && (r["from_id"].nil? || r["from_id"].to_s.strip.empty?)
             raw = db.execute("SELECT * FROM messages WHERE id = ?", [r["id"]]).first
             debug_log(
@@ -301,7 +333,7 @@ module PotatoMesh
           r["pdop"] = coerce_float(r["pdop"])
           r["snr"] = coerce_float(r["snr"])
         end
-        rows
+        rows.map { |row| compact_api_row(row) }
       ensure
         db&.close
       end
@@ -341,7 +373,7 @@ module PotatoMesh
           r["rx_iso"] = Time.at(rx_time).utc.iso8601 if rx_time
           r["snr"] = coerce_float(r["snr"])
         end
-        rows
+        rows.map { |row| compact_api_row(row) }
       ensure
         db&.close
       end
@@ -400,8 +432,26 @@ module PotatoMesh
           r["temperature"] = coerce_float(r["temperature"])
           r["relative_humidity"] = coerce_float(r["relative_humidity"])
           r["barometric_pressure"] = coerce_float(r["barometric_pressure"])
+          r["gas_resistance"] = coerce_float(r["gas_resistance"])
+          r["current"] = coerce_float(r["current"])
+          r["iaq"] = coerce_integer(r["iaq"])
+          r["distance"] = coerce_float(r["distance"])
+          r["lux"] = coerce_float(r["lux"])
+          r["white_lux"] = coerce_float(r["white_lux"])
+          r["ir_lux"] = coerce_float(r["ir_lux"])
+          r["uv_lux"] = coerce_float(r["uv_lux"])
+          r["wind_direction"] = coerce_integer(r["wind_direction"])
+          r["wind_speed"] = coerce_float(r["wind_speed"])
+          r["weight"] = coerce_float(r["weight"])
+          r["wind_gust"] = coerce_float(r["wind_gust"])
+          r["wind_lull"] = coerce_float(r["wind_lull"])
+          r["radiation"] = coerce_float(r["radiation"])
+          r["rainfall_1h"] = coerce_float(r["rainfall_1h"])
+          r["rainfall_24h"] = coerce_float(r["rainfall_24h"])
+          r["soil_moisture"] = coerce_integer(r["soil_moisture"])
+          r["soil_temperature"] = coerce_float(r["soil_temperature"])
         end
-        rows
+        rows.map { |row| compact_api_row(row) }
       ensure
         db&.close
       end

web/lib/potato_mesh/application/routes/api.rb

@@ -17,6 +17,10 @@ module PotatoMesh
     module Routes
       module Api
         def self.registered(app)
+          app.before "/api/messages*" do
+            halt 404 if private_mode?
+          end
+
           app.get "/version" do
             content_type :json
             last_update = latest_node_update_timestamp
@@ -67,14 +71,12 @@ module PotatoMesh
           end
 
           app.get "/api/messages" do
-            halt 404 if private_mode?
             content_type :json
             limit = [params["limit"]&.to_i || 200, 1000].min
             query_messages(limit).to_json
           end
 
           app.get "/api/messages/:id" do
-            halt 404 if private_mode?
             content_type :json
             node_ref = string_or_nil(params["id"])
             halt 400, { error: "missing node id" }.to_json unless node_ref
@@ -125,6 +127,9 @@ module PotatoMesh
           end
 
           app.get "/api/instances" do
+            # Prevent the federation catalog from being exposed when federation is disabled.
+            halt 404 unless federation_enabled?
+
             content_type :json
             ensure_self_instance_record!
             payload = load_instances_for_api

web/lib/potato_mesh/application/routes/ingest.rb

@@ -40,7 +40,6 @@ module PotatoMesh
           end
 
           app.post "/api/messages" do
-            halt 404 if private_mode?
             require_token!
             content_type :json
             begin
@@ -241,8 +240,7 @@ module PotatoMesh
 
             db = open_database
             upsert_instance_record(db, attributes, signature)
-            ingest_known_instances_from!(
-              db,
+            enqueued = enqueue_federation_crawl(
               attributes[:domain],
               per_response_limit: PotatoMesh::Config.federation_max_instances_per_response,
               overall_limit: PotatoMesh::Config.federation_max_domains_per_crawl,
@@ -252,6 +250,7 @@ module PotatoMesh
               context: "ingest.register",
               domain: attributes[:domain],
               instance_id: attributes[:id],
+              crawl_enqueued: enqueued,
             )
             status 201
             { status: "registered" }.to_json

web/lib/potato_mesh/application/routes/root.rb

@@ -62,6 +62,7 @@ module PotatoMesh
                           contact_link_url: sanitized_contact_link_url,
                           version: app_constant(:APP_VERSION),
                           private_mode: private_mode?,
+                          federation_enabled: federation_enabled?,
                           refresh_interval_seconds: PotatoMesh::Config.refresh_interval_seconds,
                           app_config_json: JSON.generate(config),
                           initial_theme: theme,

web/lib/potato_mesh/application/worker_pool.rb

@@ -0,0 +1,212 @@
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# frozen_string_literal: true
+
+module PotatoMesh
+  module App
+    # WorkerPool executes submitted blocks using a bounded set of Ruby threads.
+    #
+    # The pool enforces an upper bound on queued tasks, surfaces errors raised
+    # by jobs, and supports graceful shutdown during application teardown.
+    class WorkerPool
+      # Raised when the worker pool queue has reached its configured capacity.
+      class QueueFullError < StandardError; end
+
+      # Raised when a task fails to complete before the requested timeout.
+      class TaskTimeoutError < StandardError; end
+
+      # Raised when scheduling occurs after the pool has been shut down.
+      class ShutdownError < StandardError; end
+
+      # Internal structure responsible for coordinating task completion.
+      class Task
+        # @return [Object, nil] value produced by the task block when available.
+        attr_reader :value
+
+        # @return [StandardError, nil] error raised by the task block when set.
+        attr_reader :error
+
+        def initialize
+          @mutex = Mutex.new
+          @condition = ConditionVariable.new
+          @complete = false
+          @value = nil
+          @error = nil
+        end
+
+        # Mark the task as completed successfully.
+        #
+        # @param result [Object] value produced by the job.
+        # @return [void]
+        def fulfill(result)
+          @mutex.synchronize do
+            return if @complete
+
+            @complete = true
+            @value = result
+            @condition.broadcast
+          end
+        end
+
+        # Mark the task as failed with the provided error.
+        #
+        # @param failure [StandardError] exception raised while executing the job.
+        # @return [void]
+        def reject(failure)
+          @mutex.synchronize do
+            return if @complete
+
+            @complete = true
+            @error = failure
+            @condition.broadcast
+          end
+        end
+
+        # Wait for the task to complete, raising any stored failure.
+        #
+        # @param timeout [Numeric, nil] optional timeout in seconds.
+        # @return [Object] the value produced by the job when successful.
+        # @raise [TaskTimeoutError] when the timeout elapses prior to completion.
+        # @raise [StandardError] when the job raised an exception.
+        def wait(timeout: nil)
+          deadline = timeout && monotonic_now + timeout
+
+          @mutex.synchronize do
+            until @complete
+              if deadline
+                remaining = deadline - monotonic_now
+                raise TaskTimeoutError, "task deadline exceeded" if remaining <= 0
+
+                @condition.wait(@mutex, remaining)
+              else
+                @condition.wait(@mutex)
+              end
+            end
+
+            raise @error if @error
+
+            @value
+          end
+        end
+
+        # Check whether the task has finished executing.
+        #
+        # @return [Boolean] true when the task is complete.
+        def complete?
+          @mutex.synchronize { @complete }
+        end
+
+        private
+
+        def monotonic_now
+          Process.clock_gettime(Process::CLOCK_MONOTONIC)
+        end
+      end
+
+      STOP_SIGNAL = Object.new
+
+      # @return [Array<Thread>] threads created to service the pool.
+      attr_reader :threads
+
+      # Initialize a worker pool using the supplied configuration.
+      #
+      # @param size [Integer] number of worker threads to spawn.
+      # @param max_queue [Integer, nil] optional upper bound on queued jobs.
+      # @param name [String] prefix assigned to worker thread names.
+      def initialize(size:, max_queue: nil, name: "worker-pool")
+        raise ArgumentError, "size must be positive" unless size.is_a?(Integer) && size.positive?
+
+        @name = name
+        @queue = max_queue ? SizedQueue.new(max_queue) : Queue.new
+        @threads = []
+        @stopped = false
+        @mutex = Mutex.new
+        spawn_workers(size)
+      end
+
+      # Determine whether the worker pool is still accepting work.
+      #
+      # @return [Boolean] true when the pool remains active.
+      def alive?
+        @mutex.synchronize { !@stopped }
+      end
+
+      # Submit a block of work for asynchronous execution.
+      #
+      # @yieldreturn [Object] result produced by the job block.
+      # @return [Task] task tracking the asynchronous execution.
+      # @raise [QueueFullError] when the queue cannot accept additional work.
+      # @raise [ShutdownError] when the pool is no longer active.
+      def schedule(&block)
+        raise ArgumentError, "block required" unless block
+
+        task = Task.new
+
+        @mutex.synchronize do
+          raise ShutdownError, "worker pool has been shut down" if @stopped
+
+          begin
+            @queue.push([task, block], true)
+          rescue ThreadError => e
+            raise QueueFullError, e.message
+          end
+        end
+
+        task
+      end
+
+      # Stop accepting work and wait for the worker threads to finish.
+      #
+      # @param timeout [Numeric, nil] seconds to wait for each worker to exit.
+      # @return [void]
+      def shutdown(timeout: nil)
+        threads = nil
+
+        @mutex.synchronize do
+          return if @stopped
+
+          @stopped = true
+          threads = @threads.dup
+        end
+
+        threads.each { @queue << STOP_SIGNAL }
+        threads.each { |thread| thread.join(timeout) }
+      end
+
+      private
+
+      def spawn_workers(size)
+        size.times do |index|
+          worker = Thread.new do
+            Thread.current.name = "#{@name}-#{index}" if Thread.current.respond_to?(:name=)
+            Thread.current.report_on_exception = false if Thread.current.respond_to?(:report_on_exception=)
+
+            loop do
+              task, block = @queue.pop
+              break if task.equal?(STOP_SIGNAL)
+
+              begin
+                result = block.call
+                task.fulfill(result)
+              rescue StandardError => e
+                task.reject(e)
+              end
+            end
+          end
+
+          @threads << worker
+        end
+      end
+    end
+  end
+end

web/lib/potato_mesh/config.rb

@@ -32,12 +32,51 @@ module PotatoMesh
     DEFAULT_FREQUENCY = "915MHz"
     DEFAULT_CONTACT_LINK = "#potatomesh:dod.ngo"
     DEFAULT_MAX_DISTANCE_KM = 42.0
-    DEFAULT_REMOTE_INSTANCE_CONNECT_TIMEOUT = 5
-    DEFAULT_REMOTE_INSTANCE_READ_TIMEOUT = 12
+    DEFAULT_REMOTE_INSTANCE_CONNECT_TIMEOUT = 15
+    DEFAULT_REMOTE_INSTANCE_READ_TIMEOUT = 60
     DEFAULT_FEDERATION_MAX_INSTANCES_PER_RESPONSE = 64
     DEFAULT_FEDERATION_MAX_DOMAINS_PER_CRAWL = 256
+    DEFAULT_FEDERATION_WORKER_POOL_SIZE = 4
+    DEFAULT_FEDERATION_WORKER_QUEUE_CAPACITY = 128
+    DEFAULT_FEDERATION_TASK_TIMEOUT_SECONDS = 120
     DEFAULT_INITIAL_FEDERATION_DELAY_SECONDS = 2
 
+    # Retrieve the configured API token used for authenticated requests.
+    #
+    # @return [String, nil] API token when provided, otherwise nil.
+    def api_token
+      fetch_string("API_TOKEN", nil)
+    end
+
+    # Retrieve an explicit instance domain override when present.
+    #
+    # @return [String, nil] hostname or host:port pair supplied via ENV.
+    def instance_domain
+      fetch_string("INSTANCE_DOMAIN", nil)
+    end
+
+    # Determine whether private mode should be activated.
+    #
+    # @return [Boolean] true when PRIVATE=1 in the environment.
+    def private_mode_enabled?
+      value = ENV.fetch("PRIVATE", "0")
+      value.to_s.strip == "1"
+    end
+
+    # Determine whether federation features are permitted for the instance.
+    #
+    # Federation is disabled when ``PRIVATE=1`` regardless of the
+    # ``FEDERATION`` environment variable to ensure a private deployment does
+    # not announce itself or crawl peers.
+    #
+    # @return [Boolean] true when federation should remain active.
+    def federation_enabled?
+      return false if private_mode_enabled?
+
+      value = ENV.fetch("FEDERATION", "1")
+      value.to_s.strip != "0"
+    end
+
     # Resolve the absolute path to the web application root directory.
     #
     # @return [String] absolute filesystem path of the web folder.
@@ -134,7 +173,7 @@ module PotatoMesh
     #
     # @return [String] semantic version identifier.
     def version_fallback
-      "v0.5.2"
+      "v0.5.4"
     end
 
     # Default refresh interval for frontend polling routines.
@@ -179,7 +218,7 @@ module PotatoMesh
     #
     # @return [String] comma separated list of report IDs.
     def prom_report_ids
-      ""
+      fetch_string("PROM_REPORT_IDS", "")
     end
 
     # Transform Prometheus report identifiers into a cleaned array.
@@ -276,16 +315,28 @@ module PotatoMesh
 
     # Connection timeout used when establishing federation HTTP sockets.
     #
+    # The timeout can be customised with the REMOTE_INSTANCE_CONNECT_TIMEOUT
+    # environment variable to accommodate slower or distant federation peers.
+    #
     # @return [Integer] connect timeout in seconds.
     def remote_instance_http_timeout
-      DEFAULT_REMOTE_INSTANCE_CONNECT_TIMEOUT
+      fetch_positive_integer(
+        "REMOTE_INSTANCE_CONNECT_TIMEOUT",
+        DEFAULT_REMOTE_INSTANCE_CONNECT_TIMEOUT,
+      )
     end
 
     # Read timeout used when streaming federation HTTP responses.
     #
+    # The timeout can be customised with the REMOTE_INSTANCE_READ_TIMEOUT
+    # environment variable to accommodate slower or distant federation peers.
+    #
     # @return [Integer] read timeout in seconds.
     def remote_instance_read_timeout
-      DEFAULT_REMOTE_INSTANCE_READ_TIMEOUT
+      fetch_positive_integer(
+        "REMOTE_INSTANCE_READ_TIMEOUT",
+        DEFAULT_REMOTE_INSTANCE_READ_TIMEOUT,
+      )
     end
 
     # Limit the number of remote instances processed from a single response.
@@ -308,6 +359,36 @@ module PotatoMesh
       )
     end
 
+    # Determine the worker pool size used for federation tasks.
+    #
+    # @return [Integer] number of worker threads dedicated to federation jobs.
+    def federation_worker_pool_size
+      fetch_positive_integer(
+        "FEDERATION_WORKERS",
+        DEFAULT_FEDERATION_WORKER_POOL_SIZE,
+      )
+    end
+
+    # Determine the queue capacity for pending federation jobs.
+    #
+    # @return [Integer] maximum number of queued tasks before rejecting work.
+    def federation_worker_queue_capacity
+      fetch_positive_integer(
+        "FEDERATION_WORK_QUEUE",
+        DEFAULT_FEDERATION_WORKER_QUEUE_CAPACITY,
+      )
+    end
+
+    # Determine the timeout applied when awaiting federation worker tasks.
+    #
+    # @return [Integer] seconds to wait for asynchronous jobs to complete.
+    def federation_task_timeout_seconds
+      fetch_positive_integer(
+        "FEDERATION_TASK_TIMEOUT",
+        DEFAULT_FEDERATION_TASK_TIMEOUT_SECONDS,
+      )
+    end
+
     # Maximum acceptable age for remote node data.
     #
     # @return [Integer] seconds before remote nodes are considered stale.
@@ -413,6 +494,13 @@ module PotatoMesh
       fetch_string("CONTACT_LINK", DEFAULT_CONTACT_LINK)
     end
 
+    # Retrieve the configured connection target for the ingestor service.
+    #
+    # @return [String] serial device, TCP endpoint, or Bluetooth target.
+    def connection_target
+      fetch_string("CONNECTION", "/dev/ttyACM0")
+    end
+
     # Determine the best URL to represent the configured contact link.
     #
     # @return [String, nil] absolute URL when derivable, otherwise nil.

web/package-lock.json

@@ -6,7 +6,168 @@
   "packages": {
     "": {
       "name": "potato-mesh",
-      "version": "0.5.0"
+      "version": "0.5.0",
+      "devDependencies": {
+        "istanbul-lib-coverage": "^3.2.2",
+        "istanbul-lib-report": "^3.0.1",
+        "istanbul-reports": "^3.2.0",
+        "v8-to-istanbul": "^9.3.0"
+      }
+    },
+    "node_modules/@jridgewell/resolve-uri": {
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/@jridgewell/resolve-uri/-/resolve-uri-3.1.2.tgz",
+      "integrity": "sha512-bRISgCIjP20/tbWSPWMEi54QVPRZExkuD9lJL+UIxUKtwVJA8wW1Trb1jMs1RFXo1CBTNZ/5hpC9QvmKWdopKw==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=6.0.0"
+      }
+    },
+    "node_modules/@jridgewell/sourcemap-codec": {
+      "version": "1.5.5",
+      "resolved": "https://registry.npmjs.org/@jridgewell/sourcemap-codec/-/sourcemap-codec-1.5.5.tgz",
+      "integrity": "sha512-cYQ9310grqxueWbl+WuIUIaiUaDcj7WOq5fVhEljNVgRfOUhY9fy2zTvfoqWsnebh8Sl70VScFbICvJnLKB0Og==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/@jridgewell/trace-mapping": {
+      "version": "0.3.31",
+      "resolved": "https://registry.npmjs.org/@jridgewell/trace-mapping/-/trace-mapping-0.3.31.tgz",
+      "integrity": "sha512-zzNR+SdQSDJzc8joaeP8QQoCQr8NuYx2dIIytl1QeBEZHJ9uW6hebsrYgbz8hJwUQao3TWCMtmfV8Nu1twOLAw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@jridgewell/resolve-uri": "^3.1.0",
+        "@jridgewell/sourcemap-codec": "^1.4.14"
+      }
+    },
+    "node_modules/@types/istanbul-lib-coverage": {
+      "version": "2.0.6",
+      "resolved": "https://registry.npmjs.org/@types/istanbul-lib-coverage/-/istanbul-lib-coverage-2.0.6.tgz",
+      "integrity": "sha512-2QF/t/auWm0lsy8XtKVPG19v3sSOQlJe/YHZgfjb/KBBHOGSV+J2q/S671rcq9uTBrLAXmZpqJiaQbMT+zNU1w==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/convert-source-map": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/convert-source-map/-/convert-source-map-2.0.0.tgz",
+      "integrity": "sha512-Kvp459HrV2FEJ1CAsi1Ku+MY3kasH19TFykTz2xWmMeq6bk2NU3XXvfJ+Q61m0xktWwt+1HSYf3JZsTms3aRJg==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/has-flag": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
+      "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/html-escaper": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/html-escaper/-/html-escaper-2.0.2.tgz",
+      "integrity": "sha512-H2iMtd0I4Mt5eYiapRdIDjp+XzelXQ0tFE4JS7YFwFevXXMmOp9myNrUvCg0D6ws8iqkRPBfKHgbwig1SmlLfg==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/istanbul-lib-coverage": {
+      "version": "3.2.2",
+      "resolved": "https://registry.npmjs.org/istanbul-lib-coverage/-/istanbul-lib-coverage-3.2.2.tgz",
+      "integrity": "sha512-O8dpsF+r0WV/8MNRKfnmrtCWhuKjxrq2w+jpzBL5UZKTi2LeVWnWOmWRxFlesJONmc+wLAGvKQZEOanko0LFTg==",
+      "dev": true,
+      "license": "BSD-3-Clause",
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/istanbul-lib-report": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/istanbul-lib-report/-/istanbul-lib-report-3.0.1.tgz",
+      "integrity": "sha512-GCfE1mtsHGOELCU8e/Z7YWzpmybrx/+dSTfLrvY8qRmaY6zXTKWn6WQIjaAFw069icm6GVMNkgu0NzI4iPZUNw==",
+      "dev": true,
+      "license": "BSD-3-Clause",
+      "dependencies": {
+        "istanbul-lib-coverage": "^3.0.0",
+        "make-dir": "^4.0.0",
+        "supports-color": "^7.1.0"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
+    "node_modules/istanbul-reports": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/istanbul-reports/-/istanbul-reports-3.2.0.tgz",
+      "integrity": "sha512-HGYWWS/ehqTV3xN10i23tkPkpH46MLCIMFNCaaKNavAXTF1RkqxawEPtnjnGZ6XKSInBKkiOA5BKS+aZiY3AvA==",
+      "dev": true,
+      "license": "BSD-3-Clause",
+      "dependencies": {
+        "html-escaper": "^2.0.0",
+        "istanbul-lib-report": "^3.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/make-dir": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/make-dir/-/make-dir-4.0.0.tgz",
+      "integrity": "sha512-hXdUTZYIVOt1Ex//jAQi+wTZZpUpwBj/0QsOzqegb3rGMMeJiSEu5xLHnYfBrRV4RH2+OCSOO95Is/7x1WJ4bw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "semver": "^7.5.3"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/semver": {
+      "version": "7.7.3",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-7.7.3.tgz",
+      "integrity": "sha512-SdsKMrI9TdgjdweUSR9MweHA4EJ8YxHn8DFaDisvhVlUOe4BF1tLD7GAj0lIqWVl+dPb/rExr0Btby5loQm20Q==",
+      "dev": true,
+      "license": "ISC",
+      "bin": {
+        "semver": "bin/semver.js"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
+    "node_modules/supports-color": {
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
+      "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "has-flag": "^4.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/v8-to-istanbul": {
+      "version": "9.3.0",
+      "resolved": "https://registry.npmjs.org/v8-to-istanbul/-/v8-to-istanbul-9.3.0.tgz",
+      "integrity": "sha512-kiGUalWN+rgBJ/1OHZsBtU4rXZOfj/7rKQxULKlIzwzQSvMJUUNgPwJEEh7gU6xEVxC0ahoOBvN2YI8GH6FNgA==",
+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "@jridgewell/trace-mapping": "^0.3.12",
+        "@types/istanbul-lib-coverage": "^2.0.1",
+        "convert-source-map": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=10.12.0"
+      }
     }
   }
 }

web/package.json

@@ -5,5 +5,11 @@
   "private": true,
   "scripts": {
     "test": "mkdir -p reports coverage && NODE_V8_COVERAGE=coverage node --test --experimental-test-coverage --test-reporter=spec --test-reporter-destination=stdout --test-reporter=junit --test-reporter-destination=reports/javascript-junit.xml && node ./scripts/export-coverage.js"
+  },
+  "devDependencies": {
+    "istanbul-lib-coverage": "^3.2.2",
+    "istanbul-lib-report": "^3.0.1",
+    "istanbul-reports": "^3.2.0",
+    "v8-to-istanbul": "^9.3.0"
   }
 }

web/public/assets/js/app/__tests__/chat-format.test.js

@@ -19,6 +19,7 @@ import {
   extractChatMessageMetadata,
   formatChatMessagePrefix,
   formatChatChannelTag,
+  formatChatPresetTag,
   formatNodeAnnouncementPrefix,
   __test__
 } from '../chat-format.js';
@@ -28,7 +29,13 @@ const {
   normalizeString,
   normalizeFrequency,
   normalizeFrequencySlot,
-  FREQUENCY_PLACEHOLDER
+  FREQUENCY_PLACEHOLDER,
+  resolveModemPresetCandidate,
+  normalizePresetString,
+  abbreviatePreset,
+  derivePresetInitials,
+  normalizePresetSlot,
+  PRESET_PLACEHOLDER
 } = __test__;
 
 test('extractChatMessageMetadata prefers explicit region_frequency and channel_name', () => {
@@ -39,21 +46,32 @@ test('extractChatMessageMetadata prefers explicit region_frequency and channel_n
     channelName: 'Ignored'
   };
   const result = extractChatMessageMetadata(payload);
-  assert.deepEqual(result, { frequency: '868', channelName: 'Test Channel' });
+  assert.deepEqual(result, { frequency: '868', channelName: 'Test Channel', presetCode: null });
 });
 
 test('extractChatMessageMetadata falls back to LoRa metadata', () => {
   const payload = {
     lora_freq: 915,
-    channelName: 'SpecChannel'
+    channelName: 'SpecChannel',
+    modem_preset: 'MediumFast'
   };
   const result = extractChatMessageMetadata(payload);
-  assert.deepEqual(result, { frequency: '915', channelName: 'SpecChannel' });
+  assert.deepEqual(result, { frequency: '915', channelName: 'SpecChannel', presetCode: 'MF' });
 });
 
 test('extractChatMessageMetadata returns null metadata for invalid input', () => {
-  assert.deepEqual(extractChatMessageMetadata(null), { frequency: null, channelName: null });
-  assert.deepEqual(extractChatMessageMetadata(undefined), { frequency: null, channelName: null });
+  assert.deepEqual(extractChatMessageMetadata(null), { frequency: null, channelName: null, presetCode: null });
+  assert.deepEqual(extractChatMessageMetadata(undefined), { frequency: null, channelName: null, presetCode: null });
+});
+
+test('extractChatMessageMetadata inspects nested node payloads for modem presets', () => {
+  const payload = {
+    node: {
+      modem_preset: 'ShortTurbo'
+    }
+  };
+  const result = extractChatMessageMetadata(payload);
+  assert.equal(result.presetCode, 'ST');
 });
 
 test('firstNonNull returns the first non-null candidate', () => {
@@ -107,6 +125,11 @@ test('formatChatChannelTag wraps channel names after the short name slot', () =>
   );
 });
 
+test('formatChatPresetTag renders preset hints with placeholders', () => {
+  assert.equal(formatChatPresetTag({ presetCode: 'MF' }), '[MF]');
+  assert.equal(formatChatPresetTag({ presetCode: null }), `[${PRESET_PLACEHOLDER}]`);
+});
+
 test('formatNodeAnnouncementPrefix includes optional frequency bracket', () => {
   assert.equal(
     formatNodeAnnouncementPrefix({ timestamp: '12:34:56', frequency: '868' }),
@@ -124,3 +147,32 @@ test('normalizeFrequencySlot returns placeholder when frequency is missing', ()
   assert.equal(normalizeFrequencySlot(undefined), FREQUENCY_PLACEHOLDER);
   assert.equal(normalizeFrequencySlot('915'), '915');
 });
+
+test('resolveModemPresetCandidate walks nested payloads', () => {
+  const nested = { node: { modemPreset: 'LongFast' } };
+  assert.equal(resolveModemPresetCandidate(nested), 'LongFast');
+});
+
+test('normalizePresetString trims strings and ignores empties', () => {
+  assert.equal(normalizePresetString(' MediumSlow '), 'MediumSlow');
+  assert.equal(normalizePresetString('   '), null);
+  assert.equal(normalizePresetString(null), null);
+});
+
+test('abbreviatePreset maps known presets to codes', () => {
+  assert.equal(abbreviatePreset('VeryLongSlow'), 'VL');
+  assert.equal(abbreviatePreset('customPreset'), 'CP');
+  assert.equal(abbreviatePreset('X'), 'X?');
+});
+
+test('derivePresetInitials falls back to segmented tokens', () => {
+  assert.equal(derivePresetInitials('Long Moderate'), 'LM');
+  assert.equal(derivePresetInitials('ShortTurbo'), 'ST');
+  assert.equal(derivePresetInitials('Z'), 'Z?');
+});
+
+test('normalizePresetSlot enforces placeholders and uppercase output', () => {
+  assert.equal(normalizePresetSlot('mf'), 'MF');
+  assert.equal(normalizePresetSlot(''), PRESET_PLACEHOLDER);
+  assert.equal(normalizePresetSlot(null), PRESET_PLACEHOLDER);
+});

web/public/assets/js/app/__tests__/chat-log-highlights.test.js

@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2025 l5yth
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import test from 'node:test';
+import assert from 'node:assert/strict';
+
+import { formatPositionHighlights, formatTelemetryHighlights } from '../chat-log-highlights.js';
+
+test('formatTelemetryHighlights includes formatted numeric metrics', () => {
+  const highlights = formatTelemetryHighlights({
+    temperature: 21.44,
+    relative_humidity: 54.27,
+  });
+
+  assert.deepEqual(highlights, [
+    { label: 'Temperature', value: '21.4°C' },
+    { label: 'Humidity', value: '54.3%' },
+  ]);
+});
+
+test('formatTelemetryHighlights prefers nested telemetry when top-level values are stale', () => {
+  const highlights = formatTelemetryHighlights({
+    channel_utilization: 0,
+    device_metrics: { channelUtilization: 0.561 },
+  });
+
+  assert.deepEqual(highlights, [
+    { label: 'Channel Util', value: '0.561%' },
+  ]);
+});
+
+test('formatPositionHighlights renders coordinate and movement data', () => {
+  const highlights = formatPositionHighlights({
+    latitude: 52.1234567,
+    longitude: 13.7654321,
+    altitude: 150.5,
+    accuracy: 3.2,
+    speed: 1.234,
+    heading: 181.6,
+    satellites: 7,
+  });
+
+  assert.deepEqual(highlights, [
+    { label: 'Lat', value: '52.12346' },
+    { label: 'Lon', value: '13.76543' },
+    { label: 'Alt', value: '150.5m' },
+    { label: 'Accuracy', value: '3.2m' },
+    { label: 'Speed', value: '1.2 m/s' },
+    { label: 'Heading', value: '182°' },
+    { label: 'Sats', value: '7' },
+  ]);
+});
+
+test('formatPositionHighlights normalises integer microdegree fields', () => {
+  const highlights = formatPositionHighlights({
+    position: {
+      latitude_i: 52_123_456,
+      longitude_i: 13_765_432,
+    },
+  });
+
+  assert.deepEqual(highlights.slice(0, 2), [
+    { label: 'Lat', value: '52.12346' },
+    { label: 'Lon', value: '13.76543' },
+  ]);
+});
+
+test('formatters return empty arrays when payloads are missing', () => {
+  assert.deepEqual(formatTelemetryHighlights(null), []);
+  assert.deepEqual(formatPositionHighlights(undefined), []);
+  assert.deepEqual(formatPositionHighlights({}), []);
+});
+
+test('formatPositionHighlights omits zero-valued movement metrics while keeping coordinates', () => {
+  const highlights = formatPositionHighlights({
+    latitude: 0,
+    longitude: 0,
+    altitude: 0,
+    speed: '0',
+    accuracy: 0,
+  });
+
+  assert.deepEqual(highlights, [
+    { label: 'Lat', value: '0.00000' },
+    { label: 'Lon', value: '0.00000' },
+  ]);
+});

web/public/assets/js/app/__tests__/chat-log-tabs.test.js

@@ -0,0 +1,186 @@
+/*
+ * Copyright (C) 2025 l5yth
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import test from 'node:test';
+import assert from 'node:assert/strict';
+
+import {
+  CHAT_LOG_ENTRY_TYPES,
+  buildChatTabModel,
+  MAX_CHANNEL_INDEX,
+  normaliseChannelIndex,
+  normaliseChannelName,
+  resolveTimestampSeconds
+} from '../chat-log-tabs.js';
+
+const NOW = 1_000_000;
+const WINDOW = 60 * 60; // one hour
+
+function fixtureNodes() {
+  return [
+    { id: 'recent-node', first_heard: NOW - 120 },
+    { id: 'stale-node', first_heard: NOW - WINDOW - 1 },
+    { id: 'iso-node', firstHeard: null, first_heard_iso: new Date((NOW - 30) * 1000).toISOString() }
+  ];
+}
+
+function fixtureMessages() {
+  return [
+    { id: 'recent-default', rx_time: NOW - 5, channel: 0, channel_name: ' MediumFast ' },
+    { id: 'primary-preset', rx_time: NOW - 8, channel: 0, modem_preset: ' ShortFast ' },
+    { id: 'env-default', rx_time: NOW - 12, channel: 0 },
+    { id: 'recent-alt', rx_time: NOW - 10, channel_index: '1', channel_name: ' BerlinMesh ' },
+    { id: 'stale', rx_time: NOW - WINDOW - 5, channel: 2 },
+    { id: 'encrypted', rx_time: NOW - 20, channel: 3, encrypted: true },
+    { id: 'no-index', rx_time: NOW - 15, channel_name: 'Fallback' },
+    { id: 'too-high', rx_time: NOW - 25, channel: MAX_CHANNEL_INDEX + 5, channel_name: 'Ignored' },
+    { id: 'iso-ts', rxTime: null, rx_iso: new Date((NOW - 40) * 1000).toISOString(), channel: 1 }
+  ];
+}
+
+function buildModel(overrides = {}) {
+  return buildChatTabModel({
+    nodes: fixtureNodes(),
+    messages: fixtureMessages(),
+    nowSeconds: NOW,
+    windowSeconds: WINDOW,
+    primaryChannelFallbackLabel: '#EnvDefault',
+    ...overrides
+  });
+}
+
+test('buildChatTabModel returns sorted nodes and channel buckets', () => {
+  const model = buildModel();
+  assert.equal(model.logEntries.length, 3);
+  assert.deepEqual(model.logEntries.map(entry => entry.type), [
+    CHAT_LOG_ENTRY_TYPES.NODE_NEW,
+    CHAT_LOG_ENTRY_TYPES.NODE_NEW,
+    CHAT_LOG_ENTRY_TYPES.MESSAGE_ENCRYPTED
+  ]);
+  assert.deepEqual(
+    model.logEntries.map(entry => entry.type === CHAT_LOG_ENTRY_TYPES.MESSAGE_ENCRYPTED ? entry.message.id : entry.node.id),
+    ['recent-node', 'iso-node', 'encrypted']
+  );
+
+  assert.equal(model.channels.length, 5);
+  assert.deepEqual(model.channels.map(channel => channel.label), [
+    'EnvDefault',
+    'Fallback',
+    'MediumFast',
+    'ShortFast',
+    'BerlinMesh'
+  ]);
+
+  const channelByLabel = Object.fromEntries(model.channels.map(channel => [channel.label, channel]));
+
+  const envChannel = channelByLabel.EnvDefault;
+  assert.equal(envChannel.index, 0);
+  assert.equal(envChannel.id, 'channel-0-envdefault');
+  assert.deepEqual(envChannel.entries.map(entry => entry.message.id), ['env-default']);
+
+  const fallbackChannel = channelByLabel.Fallback;
+  assert.equal(fallbackChannel.index, 0);
+  assert.equal(fallbackChannel.id, 'channel-0-fallback');
+  assert.deepEqual(fallbackChannel.entries.map(entry => entry.message.id), ['no-index']);
+
+  const namedPrimaryChannel = channelByLabel.MediumFast;
+  assert.equal(namedPrimaryChannel.index, 0);
+  assert.equal(namedPrimaryChannel.id, 'channel-0-mediumfast');
+  assert.deepEqual(namedPrimaryChannel.entries.map(entry => entry.message.id), ['recent-default']);
+
+  const presetChannel = channelByLabel.ShortFast;
+  assert.equal(presetChannel.index, 0);
+  assert.equal(presetChannel.id, 'channel-0-shortfast');
+  assert.deepEqual(presetChannel.entries.map(entry => entry.message.id), ['primary-preset']);
+
+  const secondaryChannel = channelByLabel.BerlinMesh;
+  assert.equal(secondaryChannel.index, 1);
+  assert.equal(secondaryChannel.id, 'channel-1');
+  assert.equal(secondaryChannel.entries.length, 2);
+  assert.deepEqual(secondaryChannel.entries.map(entry => entry.message.id), ['iso-ts', 'recent-alt']);
+});
+
+test('buildChatTabModel always includes channel zero bucket', () => {
+  const model = buildChatTabModel({ nodes: [], messages: [], nowSeconds: NOW, windowSeconds: WINDOW });
+  assert.equal(model.channels.length, 1);
+  assert.equal(model.channels[0].index, 0);
+  assert.equal(model.channels[0].entries.length, 0);
+});
+
+test('buildChatTabModel falls back to numeric label when no metadata provided', () => {
+  const model = buildChatTabModel({
+    nodes: [],
+    messages: [{ id: 'plain', rx_time: NOW - 5, channel: 0 }],
+    nowSeconds: NOW,
+    windowSeconds: WINDOW,
+    primaryChannelFallbackLabel: ''
+  });
+  assert.equal(model.channels.length, 1);
+  assert.equal(model.channels[0].label, '0');
+  assert.equal(model.channels[0].id, 'channel-0');
+});
+
+test('normaliseChannelIndex handles numeric and textual input', () => {
+  assert.equal(normaliseChannelIndex(2.9), 2);
+  assert.equal(normaliseChannelIndex(' 7 '), 7);
+  assert.equal(normaliseChannelIndex('bad'), null);
+  assert.equal(normaliseChannelIndex(null), null);
+});
+
+test('normaliseChannelName trims strings and allows numeric values', () => {
+  assert.equal(normaliseChannelName(' Berlin '), 'Berlin');
+  assert.equal(normaliseChannelName(5), '5');
+  assert.equal(normaliseChannelName(''), null);
+  assert.equal(normaliseChannelName(undefined), null);
+});
+
+test('resolveTimestampSeconds prefers numeric but falls back to ISO parsing', () => {
+  assert.equal(resolveTimestampSeconds(1234, null), 1234);
+  const iso = '1970-01-01T00:10:00Z';
+  assert.equal(resolveTimestampSeconds('not-numeric', iso), 600);
+  assert.equal(resolveTimestampSeconds('bad', 'invalid'), null);
+});
+
+test('buildChatTabModel includes telemetry, position, and neighbor events', () => {
+  const nodeId = '!node';
+  const neighborId = '!peer';
+  const model = buildChatTabModel({
+    nodes: [{
+      node_id: nodeId,
+      first_heard: NOW - 50,
+      last_heard: NOW - 40,
+      short_name: 'NODE',
+      long_name: 'Node Example'
+    }],
+    telemetry: [{ node_id: nodeId, rx_time: NOW - 30 }],
+    positions: [{ node_id: nodeId, rx_time: NOW - 20 }],
+    neighbors: [{ node_id: nodeId, neighbor_id: neighborId, rx_time: NOW - 10 }],
+    messages: [],
+    nowSeconds: NOW,
+    windowSeconds: WINDOW
+  });
+
+  assert.deepEqual(model.logEntries.map(entry => entry.type), [
+    CHAT_LOG_ENTRY_TYPES.NODE_NEW,
+    CHAT_LOG_ENTRY_TYPES.NODE_INFO,
+    CHAT_LOG_ENTRY_TYPES.TELEMETRY,
+    CHAT_LOG_ENTRY_TYPES.POSITION,
+    CHAT_LOG_ENTRY_TYPES.NEIGHBOR
+  ]);
+  assert.equal(model.logEntries[0].nodeId, nodeId);
+  const lastEntry = model.logEntries[model.logEntries.length - 1];
+  assert.equal(lastEntry.neighborId, neighborId);
+});

web/public/assets/js/app/__tests__/chat-search.test.js

@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2025 l5yth
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import test from 'node:test';
+import assert from 'node:assert/strict';
+
+import { CHAT_LOG_ENTRY_TYPES } from '../chat-log-tabs.js';
+import {
+  chatLogEntryMatchesQuery,
+  chatMessageMatchesQuery,
+  filterChatModel,
+  normaliseChatFilterQuery
+} from '../chat-search.js';
+
+test('normaliseChatFilterQuery lower-cases and trims user input', () => {
+  assert.equal(normaliseChatFilterQuery('  MIXED Case  '), 'mixed case');
+  assert.equal(normaliseChatFilterQuery(null), '');
+});
+
+test('chatMessageMatchesQuery inspects text and node metadata', () => {
+  const message = { text: 'Hello Mesh', node: { short_name: 'ALFA', long_name: 'Alpha Node' } };
+  const helloQuery = normaliseChatFilterQuery('mesh');
+  assert.equal(chatMessageMatchesQuery(message, helloQuery), true);
+  const aliasQuery = normaliseChatFilterQuery('alfa');
+  assert.equal(chatMessageMatchesQuery(message, aliasQuery), true);
+  const missQuery = normaliseChatFilterQuery('bravo');
+  assert.equal(chatMessageMatchesQuery(message, missQuery), false);
+});
+
+test('chatLogEntryMatchesQuery recognises position highlight values', () => {
+  const entry = {
+    type: CHAT_LOG_ENTRY_TYPES.POSITION,
+    ts: 1,
+    position: { latitude: 51.5, longitude: 0 },
+    node: { node_id: '!alpha', short_name: 'Alpha' }
+  };
+  const query = normaliseChatFilterQuery('51.50000');
+  assert.equal(chatLogEntryMatchesQuery(entry, query), true);
+  const missQuery = normaliseChatFilterQuery('bravo');
+  assert.equal(chatLogEntryMatchesQuery(entry, missQuery), false);
+});
+
+test('chatLogEntryMatchesQuery uses enriched node context for lookups', () => {
+  const entry = {
+    type: CHAT_LOG_ENTRY_TYPES.TELEMETRY,
+    nodeId: '!alpha',
+    telemetry: { voltage: 12.1 },
+    node: { short_name: 'ALFA', long_name: 'Alpha Node' }
+  };
+  const query = normaliseChatFilterQuery('alpha node');
+  assert.equal(chatLogEntryMatchesQuery(entry, query), true);
+});
+
+test('chatLogEntryMatchesQuery inspects neighbor node context', () => {
+  const entry = {
+    type: CHAT_LOG_ENTRY_TYPES.NEIGHBOR,
+    neighborId: '!bravo',
+    neighborNode: { short_name: 'BRAV', long_name: 'Bravo Station' }
+  };
+  const query = normaliseChatFilterQuery('bravo station');
+  assert.equal(chatLogEntryMatchesQuery(entry, query), true);
+});
+
+test('filterChatModel filters both log entries and channel messages', () => {
+  const model = {
+    logEntries: [
+      { type: CHAT_LOG_ENTRY_TYPES.NODE_INFO, nodeId: '!alpha', node: { short_name: 'Alpha' } },
+      { type: CHAT_LOG_ENTRY_TYPES.NODE_INFO, nodeId: '!bravo', node: { short_name: 'Bravo' } }
+    ],
+    channels: [
+      {
+        index: 0,
+        label: '0',
+        entries: [
+          { ts: 1, message: { text: 'Ping Alpha', node: { short_name: 'Alpha' } } },
+          { ts: 2, message: { text: 'Ack Bravo', node: { short_name: 'Bravo' } } }
+        ]
+      }
+    ]
+  };
+  const result = filterChatModel(model, 'bravo');
+  assert.equal(result.logEntries.length, 1);
+  assert.equal(result.logEntries[0].nodeId, '!bravo');
+  assert.equal(result.channels.length, 1);
+  assert.deepEqual(result.channels[0].entries.map(entry => entry.message.text), ['Ack Bravo']);
+});
+
+test('filterChatModel returns original references when query is empty', () => {
+  const model = {
+    logEntries: [{ type: CHAT_LOG_ENTRY_TYPES.NODE_INFO, nodeId: '!alpha', node: { short_name: 'Alpha' } }],
+    channels: [{ index: 0, label: '0', entries: [] }]
+  };
+  const result = filterChatModel(model, ' ');
+  assert.strictEqual(result.logEntries, model.logEntries);
+  assert.strictEqual(result.channels, model.channels);
+});

web/public/assets/js/app/__tests__/chat-tabs.test.js

@@ -0,0 +1,194 @@
+/*
+ * Copyright (C) 2025 l5yth
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import test from 'node:test';
+import assert from 'node:assert/strict';
+
+import { renderChatTabs } from '../chat-tabs.js';
+
+class MockClassList {
+  constructor() {
+    this._values = new Set();
+  }
+
+  add(...names) {
+    names.forEach(name => {
+      if (name) this._values.add(name);
+    });
+  }
+
+  remove(...names) {
+    names.forEach(name => {
+      if (name) this._values.delete(name);
+    });
+  }
+
+  contains(name) {
+    return this._values.has(name);
+  }
+}
+
+class MockFragment {
+  constructor() {
+    this.children = [];
+    this.isFragment = true;
+  }
+
+  appendChild(node) {
+    this.children.push(node);
+    return node;
+  }
+}
+
+class MockElement {
+  constructor(tagName) {
+    this.tagName = tagName.toUpperCase();
+    this.children = [];
+    this.attributes = new Map();
+    this.dataset = {};
+    this.classList = new MockClassList();
+    this.listeners = new Map();
+    this.hidden = false;
+    this.scrollTop = 0;
+    this.scrollHeight = 200;
+  }
+
+  appendChild(node) {
+    this.children.push(node);
+    return node;
+  }
+
+  replaceChildren(...nodes) {
+    this.children = [];
+    for (const node of nodes) {
+      if (!node) continue;
+      if (node.isFragment && Array.isArray(node.children)) {
+        this.children.push(...node.children);
+      } else {
+        this.children.push(node);
+      }
+    }
+  }
+
+  setAttribute(name, value) {
+    const strValue = String(value);
+    this.attributes.set(name, strValue);
+    if (name === 'id') {
+      this.id = strValue;
+    }
+    if (name.startsWith('data-')) {
+      const key = name
+        .slice(5)
+        .replace(/-([a-z])/g, (_, c) => c.toUpperCase());
+      this.dataset[key] = strValue;
+    }
+  }
+
+  getAttribute(name) {
+    return this.attributes.has(name) ? this.attributes.get(name) : null;
+  }
+
+  addEventListener(event, handler) {
+    this.listeners.set(event, handler);
+  }
+
+  dispatch(event) {
+    const handler = this.listeners.get(event);
+    if (handler) {
+      handler({});
+    }
+  }
+}
+
+function createMockDocument() {
+  return {
+    createElement(tag) {
+      return new MockElement(tag);
+    },
+    createDocumentFragment() {
+      return new MockFragment();
+    }
+  };
+}
+
+test('renderChatTabs creates tab markup and selects default active tab', () => {
+  const document = createMockDocument();
+  const container = new MockElement('div');
+
+  const tabs = [
+    { id: 'log', label: 'Log', content: new MockElement('div') },
+    { id: 'channel-0', label: 'Default', content: new MockElement('div') },
+    { id: 'channel-1', label: 'Alt', content: new MockElement('div') }
+  ];
+
+  const active = renderChatTabs({
+    document,
+    container,
+    tabs,
+    defaultActiveTabId: 'channel-0'
+  });
+
+  assert.equal(active, 'channel-0');
+  assert.equal(container.dataset.activeTab, 'channel-0');
+  assert.equal(container.children.length, 2);
+
+  const [tabList, panelWrapper] = container.children;
+  assert.equal(tabList.children.length, 3);
+  assert.equal(panelWrapper.children.length, 3);
+  assert.equal(panelWrapper.children[1].hidden, false);
+  assert.equal(panelWrapper.children[1].scrollTop, panelWrapper.children[1].scrollHeight);
+  assert.equal(panelWrapper.children[0].hidden, true);
+
+  tabList.children[0].dispatch('click');
+  assert.equal(container.dataset.activeTab, 'log');
+  assert.equal(panelWrapper.children[0].hidden, false);
+  assert.equal(panelWrapper.children[1].hidden, true);
+});
+
+test('renderChatTabs reuses previous active tab when still available', () => {
+  const document = createMockDocument();
+  const container = new MockElement('div');
+  container.dataset.activeTab = 'log';
+
+  const tabs = [
+    { id: 'log', label: 'Log', content: new MockElement('div') },
+    { id: 'channel-0', label: 'Default', content: new MockElement('div') }
+  ];
+
+  const active = renderChatTabs({
+    document,
+    container,
+    tabs,
+    previousActiveTabId: 'log',
+    defaultActiveTabId: 'channel-0'
+  });
+
+  assert.equal(active, 'log');
+  const [tabList, panels] = container.children;
+  assert.equal(tabList.children[0].getAttribute('aria-selected'), 'true');
+  assert.equal(panels.children[0].hidden, false);
+});
+
+test('renderChatTabs clears container when no tabs exist', () => {
+  const document = createMockDocument();
+  const container = new MockElement('div');
+  container.replaceChildren(new MockElement('span'));
+
+  const active = renderChatTabs({ document, container, tabs: [] });
+  assert.equal(active, null);
+  assert.equal(container.children.length, 0);
+  assert.equal(container.dataset.activeTab, '');
+});

web/public/assets/js/app/__tests__/instance-selector.test.js

@@ -0,0 +1,172 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { createDomEnvironment } from './dom-environment.js';
+
+import { buildInstanceUrl, initializeInstanceSelector, __test__ } from '../instance-selector.js';
+
+const { resolveInstanceLabel } = __test__;
+
+function setupSelectElement(document) {
+  const select = document.createElement('select');
+  const listeners = new Map();
+  const options = [];
+
+  Object.defineProperty(select, 'options', {
+    get() {
+      return options;
+    }
+  });
+
+  Object.defineProperty(select, 'value', {
+    get() {
+      if (typeof select.selectedIndex !== 'number') {
+        return '';
+      }
+      const current = options[select.selectedIndex];
+      return current ? current.value : '';
+    },
+    set(newValue) {
+      const index = options.findIndex(option => option.value === newValue);
+      select.selectedIndex = index >= 0 ? index : -1;
+    }
+  });
+
+  select.selectedIndex = -1;
+
+  select.appendChild = option => {
+    options.push(option);
+    if (select.selectedIndex === -1) {
+      select.selectedIndex = 0;
+    }
+    return option;
+  };
+
+  select.remove = index => {
+    if (index >= 0 && index < options.length) {
+      options.splice(index, 1);
+      if (options.length === 0) {
+        select.selectedIndex = -1;
+      } else if (select.selectedIndex >= options.length) {
+        select.selectedIndex = options.length - 1;
+      }
+    }
+  };
+
+  select.addEventListener = (event, handler) => {
+    listeners.set(event, handler);
+  };
+  select.dispatchEvent = event => {
+    const key = typeof event === 'string' ? event : event?.type;
+    const handler = listeners.get(key);
+    if (handler) {
+      handler(event);
+    }
+  };
+  return select;
+}
+
+test('resolveInstanceLabel falls back to the domain when the name is missing', () => {
+  assert.equal(resolveInstanceLabel({ domain: 'mesh.example' }), 'mesh.example');
+  assert.equal(resolveInstanceLabel({ name: '  Mesh Name  ' }), 'Mesh Name');
+  assert.equal(resolveInstanceLabel(null), '');
+});
+
+test('buildInstanceUrl normalises domains into navigable HTTPS URLs', () => {
+  assert.equal(buildInstanceUrl('mesh.example'), 'https://mesh.example');
+  assert.equal(buildInstanceUrl(' https://mesh.example '), 'https://mesh.example');
+  assert.equal(buildInstanceUrl(''), null);
+  assert.equal(buildInstanceUrl(null), null);
+});
+
+test('initializeInstanceSelector populates options alphabetically and selects the configured domain', async () => {
+  const env = createDomEnvironment();
+  const select = setupSelectElement(env.document);
+
+  const fetchCalls = [];
+  const fetchImpl = async url => {
+    fetchCalls.push(url);
+    return {
+      ok: true,
+      async json() {
+        return [
+          { name: 'Zulu Mesh', domain: 'zulu.mesh' },
+          { name: 'Alpha Mesh', domain: 'alpha.mesh' },
+          { domain: 'beta.mesh' }
+        ];
+      }
+    };
+  };
+
+  try {
+    await initializeInstanceSelector({
+      selectElement: select,
+      fetchImpl,
+      windowObject: env.window,
+      documentObject: env.document,
+      instanceDomain: 'beta.mesh',
+      defaultLabel: 'Select region ...'
+    });
+
+    assert.equal(fetchCalls.length, 1);
+    assert.equal(select.options.length, 4);
+    assert.equal(select.options[0].textContent, 'Select region ...');
+    assert.equal(select.options[1].textContent, 'Alpha Mesh');
+    assert.equal(select.options[2].textContent, 'beta.mesh');
+    assert.equal(select.options[3].textContent, 'Zulu Mesh');
+    assert.equal(select.options[select.selectedIndex].value, 'beta.mesh');
+  } finally {
+    env.cleanup();
+  }
+});
+
+test('initializeInstanceSelector navigates to the chosen instance domain', async () => {
+  const env = createDomEnvironment();
+  const select = setupSelectElement(env.document);
+
+  const fetchImpl = async () => ({
+    ok: true,
+    async json() {
+      return [{ domain: 'mesh.example' }];
+    }
+  });
+
+  let navigatedTo = null;
+  const navigate = url => {
+    navigatedTo = url;
+  };
+
+  try {
+    await initializeInstanceSelector({
+      selectElement: select,
+      fetchImpl,
+      windowObject: env.window,
+      documentObject: env.document,
+      navigate,
+      defaultLabel: 'Select region ...'
+    });
+
+    assert.equal(select.options.length, 2);
+    assert.equal(select.options[1].value, 'mesh.example');
+
+    select.value = 'mesh.example';
+    select.dispatchEvent({ type: 'change', target: select });
+
+    assert.equal(navigatedTo, 'https://mesh.example');
+  } finally {
+    env.cleanup();
+  }
+});

web/public/assets/js/app/__tests__/message-replies.test.js

@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2025 l5yth
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import test from 'node:test';
+import assert from 'node:assert/strict';
+
+import {
+  buildMessageBody,
+  buildMessageIndex,
+  normaliseMessageId,
+  resolveReplyPrefix
+} from '../message-replies.js';
+
+test('normaliseMessageId coerces numeric identifiers', () => {
+  assert.equal(normaliseMessageId(42), '42');
+  assert.equal(normaliseMessageId(' 0042 '), '42');
+  assert.equal(normaliseMessageId('alpha'), 'alpha');
+  assert.equal(normaliseMessageId(null), null);
+});
+
+test('buildMessageIndex normalises identifiers and ignores duplicates', () => {
+  const messages = [
+    { id: '001', text: 'first' },
+    { packet_id: 1, text: 'second' },
+    { id: '2', text: 'third' }
+  ];
+  const index = buildMessageIndex(messages);
+  assert.equal(index.size, 2);
+  assert.equal(index.get('1'), messages[0]);
+  assert.equal(index.get('2'), messages[2]);
+});
+
+test('resolveReplyPrefix renders reply badge and buildMessageBody joins emoji', () => {
+  const parent = {
+    id: 99,
+    node: { short_name: 'BEEF', long_name: 'Parent Node', role: 'CLIENT' },
+    text: 'parent message'
+  };
+  const reaction = { id: 100, reply_id: 99, emoji: '🔥' };
+  const index = buildMessageIndex([parent, reaction]);
+
+  const prefix = resolveReplyPrefix({
+    message: reaction,
+    messagesById: index,
+    nodesById: new Map(),
+    renderShortHtml: (short, role, longName) => `SHORT(${short}|${role}|${longName})`,
+    escapeHtml: value => `ESC(${value})`
+  });
+
+  assert.equal(
+    prefix,
+    '<span class="chat-entry-reply">[ESC(in reply to) SHORT(BEEF|CLIENT|Parent Node)]</span>'
+  );
+
+  const body = buildMessageBody({
+    message: { text: 'Hello', emoji: ' 🔥 ' },
+    escapeHtml: value => `ESC(${value})`,
+    renderEmojiHtml: value => `EMOJI(${value})`
+  });
+
+  assert.equal(body, 'ESC(Hello) EMOJI(🔥)');
+});

web/public/assets/js/app/__tests__/short-info-telemetry.test.js

@@ -0,0 +1,204 @@
+/*
+ * Copyright (C) 2025 l5yth
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import test from 'node:test';
+import assert from 'node:assert/strict';
+
+import {
+  TELEMETRY_FIELDS,
+  buildTelemetryDisplayEntries,
+  collectTelemetryMetrics,
+} from '../short-info-telemetry.js';
+
+test('collectTelemetryMetrics extracts values from nested payloads', () => {
+  const payload = {
+    battery: '100',
+    device_metrics: {
+      voltage: 4.224,
+      airUtilTx: 0.051,
+      uptimeSeconds: 305044,
+    },
+    environment_metrics: {
+      temperature: 21.98,
+      relativeHumidity: 39.5,
+      barometricPressure: 1017.8,
+      gasResistance: 1456,
+      iaq: 83,
+      distance: 12.5,
+      lux: 100.25,
+      whiteLux: 64.5,
+      irLux: 12.75,
+      uvLux: 1.6,
+      windDirection: 270,
+      windSpeed: 5.9,
+      windGust: 7.4,
+      windLull: 4.8,
+      weight: 32.7,
+      radiation: 0.45,
+      rainfall1h: 0.18,
+      rainfall24h: 1.42,
+      soilMoisture: 3100,
+      soilTemperature: 18.9,
+    },
+  };
+  const metrics = collectTelemetryMetrics(payload);
+  assert.equal(metrics.battery, 100);
+  assert.equal(metrics.voltage, 4.224);
+  assert.equal(metrics.airUtil, 0.051);
+  assert.equal(metrics.uptime, 305044);
+  assert.equal(metrics.temperature, 21.98);
+  assert.equal(metrics.humidity, 39.5);
+  assert.equal(metrics.pressure, 1017.8);
+  assert.equal(metrics.gasResistance, 1456);
+  assert.equal(metrics.iaq, 83);
+  assert.equal(metrics.distance, 12.5);
+  assert.equal(metrics.lux, 100.25);
+  assert.equal(metrics.whiteLux, 64.5);
+  assert.equal(metrics.irLux, 12.75);
+  assert.equal(metrics.uvLux, 1.6);
+  assert.equal(metrics.windDirection, 270);
+  assert.equal(metrics.windSpeed, 5.9);
+  assert.equal(metrics.windGust, 7.4);
+  assert.equal(metrics.windLull, 4.8);
+  assert.equal(metrics.weight, 32.7);
+  assert.equal(metrics.radiation, 0.45);
+  assert.equal(metrics.rainfall1h, 0.18);
+  assert.equal(metrics.rainfall24h, 1.42);
+  assert.equal(metrics.soilMoisture, 3100);
+  assert.equal(metrics.soilTemperature, 18.9);
+});
+
+test('collectTelemetryMetrics prefers latest nested telemetry values over stale top-level metrics', () => {
+  const payload = {
+    channel_utilization: 0,
+    device_metrics: {
+      channel_utilization: 0.561,
+      air_util_tx: 0.0091,
+    },
+    telemetry: {
+      channel: 0.563,
+    },
+    raw: {
+      device_metrics: {
+        channelUtilization: 0.562,
+      },
+    },
+  };
+
+  const metrics = collectTelemetryMetrics(payload);
+  assert.equal(metrics.channel, 0.563);
+  assert.equal(metrics.airUtil, 0.0091);
+});
+
+test('collectTelemetryMetrics prefers utilisation metrics over channel indices', () => {
+  const metrics = collectTelemetryMetrics({
+    channel: 0,
+    channel_utilization: 0.013,
+  });
+
+  assert.equal(metrics.channel, 0.013);
+});
+
+test('collectTelemetryMetrics prefers air util tx metrics over derived ratios', () => {
+  const metrics = collectTelemetryMetrics({
+    airUtil: 0,
+    device_metrics: {
+      air_util_tx: 0.0293
+    }
+  });
+
+  assert.equal(metrics.airUtil, 0.0293);
+});
+
+test('collectTelemetryMetrics ignores non-numeric values', () => {
+  const metrics = collectTelemetryMetrics({
+    battery: '',
+    voltage: 'abc',
+    rainfall_1h: null,
+    wind_speed: undefined,
+  });
+  for (const field of TELEMETRY_FIELDS) {
+    assert.ok(!(field.key in metrics));
+  }
+});
+
+test('buildTelemetryDisplayEntries formats values for overlays', () => {
+  const telemetry = {
+    battery: 99,
+    voltage: 4.224,
+    current: 0.0715,
+    uptime: 305044,
+    channel: 0.5967,
+    airUtil: 0.03908,
+    temperature: 21.98,
+    humidity: 39.5,
+    pressure: 1017.8,
+    gasResistance: 1456,
+    iaq: 83,
+    distance: 12.5,
+    lux: 100.25,
+    whiteLux: 64.5,
+    irLux: 12.75,
+    uvLux: 1.6,
+    windDirection: 270,
+    windSpeed: 5.9,
+    windGust: 7.4,
+    windLull: 4.8,
+    weight: 32.7,
+    radiation: 0.45,
+    rainfall1h: 0.18,
+    rainfall24h: 1.42,
+    soilMoisture: 3100,
+    soilTemperature: 18.9,
+  };
+  const entries = buildTelemetryDisplayEntries(telemetry, {
+    formatUptime: value => `formatted-${value}`,
+  });
+  const entryMap = new Map(entries.map(entry => [entry.label, entry.value]));
+  assert.equal(entryMap.get('Battery'), '99%');
+  assert.equal(entryMap.get('Voltage'), '4.224V');
+  assert.equal(entryMap.get('Current'), '71.5 mA');
+  assert.equal(entryMap.get('Uptime'), 'formatted-305044');
+  assert.equal(entryMap.get('Channel Util'), '0.597%');
+  assert.equal(entryMap.get('Air Util Tx'), '0.039%');
+  assert.equal(entryMap.get('Temperature'), '22.0°C');
+  assert.equal(entryMap.get('Humidity'), '39.5%');
+  assert.equal(entryMap.get('Pressure'), '1017.8 hPa');
+  assert.equal(entryMap.get('Gas Resistance'), '1.46 kΩ');
+  assert.equal(entryMap.get('IAQ'), '83');
+  assert.equal(entryMap.get('Distance'), '12.50 m');
+  assert.equal(entryMap.get('Lux'), '100.3 lx');
+  assert.equal(entryMap.get('White Lux'), '64.5 lx');
+  assert.equal(entryMap.get('IR Lux'), '12.8 lx');
+  assert.equal(entryMap.get('UV Lux'), '1.6 lx');
+  assert.equal(entryMap.get('Wind Direction'), '270°');
+  assert.equal(entryMap.get('Wind Speed'), '5.9 m/s');
+  assert.equal(entryMap.get('Wind Gust'), '7.4 m/s');
+  assert.equal(entryMap.get('Wind Lull'), '4.8 m/s');
+  assert.equal(entryMap.get('Weight'), '32.70 kg');
+  assert.equal(entryMap.get('Radiation'), '0.45 µSv/h');
+  assert.equal(entryMap.get('Rainfall 1h'), '0.18 mm');
+  assert.equal(entryMap.get('Rainfall 24h'), '1.42 mm');
+  assert.equal(entryMap.get('Soil Moisture'), '3100');
+  assert.equal(entryMap.get('Soil Temperature'), '18.9°C');
+});
+
+test('buildTelemetryDisplayEntries omits empty metrics', () => {
+  const entries = buildTelemetryDisplayEntries({ uptime: null }, {
+    formatUptime: () => '',
+  });
+  assert.equal(entries.length, 0);
+});

web/public/assets/js/app/chat-format.js

@@ -18,12 +18,12 @@
  * Extract channel metadata from a message payload for chat display.
  *
  * @param {Object} message Raw message payload from the API.
- * @returns {{ frequency: string|null, channelName: string|null }}
+ * @returns {{ frequency: string|null, channelName: string|null, presetCode: string|null }}
  *   Normalized metadata values.
  */
 export function extractChatMessageMetadata(message) {
   if (!message || typeof message !== 'object') {
-    return { frequency: null, channelName: null };
+    return { frequency: null, channelName: null, presetCode: null };
   }
 
   const frequency = normalizeFrequency(
@@ -40,7 +40,10 @@ export function extractChatMessageMetadata(message) {
     firstNonNull(message.channel_name, message.channelName)
   );
 
-  return { frequency, channelName };
+  const modemPreset = normalizePresetString(resolveModemPresetCandidate(message));
+  const presetCode = modemPreset ? abbreviatePreset(modemPreset) : null;
+
+  return { frequency, channelName, presetCode };
 }
 
 /**
@@ -92,6 +95,17 @@ export function formatNodeAnnouncementPrefix({ timestamp, frequency }) {
   return `[${ts}][${freq}]`;
 }
 
+/**
+ * Render the preset hint bracket inserted between the prefix and short name.
+ *
+ * @param {{ presetCode: string|null }} params Normalized preset abbreviation.
+ * @returns {string} HTML-ready bracket slot.
+ */
+export function formatChatPresetTag({ presetCode }) {
+  const slot = normalizePresetSlot(presetCode);
+  return `[${slot}]`;
+}
+
 /**
  * Produce a consistently formatted frequency slot for chat prefixes.
  *
@@ -119,6 +133,28 @@ function normalizeFrequencySlot(value) {
  */
 const FREQUENCY_PLACEHOLDER = '   ';
 
+/**
+ * HTML placeholder for missing preset abbreviations.
+ * @type {string}
+ */
+const PRESET_PLACEHOLDER = '  ';
+
+/**
+ * Canonical preset abbreviations keyed by a normalized preset token.
+ * @type {Record<string, string>}
+ */
+const PRESET_ABBREVIATIONS = {
+  verylongslow: 'VL',
+  longslow: 'LS',
+  longmoderate: 'LM',
+  longfast: 'LF',
+  mediumslow: 'MS',
+  mediumfast: 'MF',
+  shortslow: 'SS',
+  shortfast: 'SF',
+  shortturbo: 'ST',
+};
+
 /**
  * Return the first value in ``candidates`` that is not ``null`` or ``undefined``.
  *
@@ -182,6 +218,126 @@ function normalizeFrequency(value) {
   return null;
 }
 
+/**
+ * Resolve a modem preset candidate from the provided source object.
+ *
+ * @param {*} source Source payload potentially containing modem metadata.
+ * @param {Set<object>} [visited] Visited references to avoid recursion loops.
+ * @returns {*|null} Raw modem preset candidate.
+ */
+function resolveModemPresetCandidate(source, visited = new Set()) {
+  if (!source || typeof source !== 'object') {
+    return null;
+  }
+  if (visited.has(source)) {
+    return null;
+  }
+  visited.add(source);
+
+  const candidate = firstNonNull(
+    source.modemPreset,
+    source.modem_preset,
+    source.modempreset,
+    source.ModemPreset
+  );
+  if (candidate != null) {
+    return candidate;
+  }
+
+  if (source.node && typeof source.node === 'object') {
+    const nested = resolveModemPresetCandidate(source.node, visited);
+    if (nested != null) {
+      return nested;
+    }
+  }
+
+  return null;
+}
+
+/**
+ * Convert arbitrary preset input to a trimmed string.
+ *
+ * @param {*} value Raw preset candidate.
+ * @returns {string|null} Clean preset string.
+ */
+function normalizePresetString(value) {
+  if (value == null) return null;
+  if (typeof value === 'string') {
+    const trimmed = value.trim();
+    return trimmed.length > 0 ? trimmed : null;
+  }
+  if (typeof value === 'number') {
+    return String(value);
+  }
+  return null;
+}
+
+/**
+ * Produce a two-character abbreviation for a modem preset.
+ *
+ * @param {string} preset Normalized preset string.
+ * @returns {string|null} Uppercase abbreviation or ``null``.
+ */
+function abbreviatePreset(preset) {
+  if (!preset) {
+    return null;
+  }
+  const token = preset.replace(/[^A-Za-z]/g, '').toLowerCase();
+  if (token && PRESET_ABBREVIATIONS[token]) {
+    return PRESET_ABBREVIATIONS[token];
+  }
+  return derivePresetInitials(preset);
+}
+
+/**
+ * Generate fallback initials for unmapped presets.
+ *
+ * @param {string} preset Raw preset string.
+ * @returns {string|null} Derived initials.
+ */
+function derivePresetInitials(preset) {
+  if (!preset) {
+    return null;
+  }
+  const spaced = preset.replace(/([a-z0-9])([A-Z])/g, '$1 $2');
+  const tokens = spaced
+    .split(/[\s_-]+/)
+    .map(part => part.replace(/[^A-Za-z]/g, ''))
+    .filter(Boolean);
+  if (tokens.length === 0) {
+    return null;
+  }
+  if (tokens.length === 1) {
+    const upper = tokens[0].toUpperCase();
+    if (upper.length >= 2) {
+      return upper.slice(0, 2);
+    }
+    if (upper.length === 1) {
+      return `${upper}?`;
+    }
+    return null;
+  }
+  const initials = tokens.map(part => part[0].toUpperCase());
+  if (initials.length >= 2) {
+    return `${initials[0]}${initials[1]}`;
+  }
+  return null;
+}
+
+/**
+ * Normalise the preset slot contents for the bracket display.
+ *
+ * @param {*} value Raw preset code.
+ * @returns {string} HTML-ready preset slot.
+ */
+function normalizePresetSlot(value) {
+  if (value == null) {
+    return PRESET_PLACEHOLDER;
+  }
+  const trimmed = String(value).trim().toUpperCase();
+  return trimmed.length > 0 ? trimmed.slice(0, 2) : PRESET_PLACEHOLDER;
+}
+
 export const __test__ = {
   firstNonNull,
   normalizeString,
@@ -190,5 +346,11 @@ export const __test__ = {
   formatNodeAnnouncementPrefix,
   normalizeFrequencySlot,
   FREQUENCY_PLACEHOLDER,
-  formatChatChannelTag
+  formatChatChannelTag,
+  resolveModemPresetCandidate,
+  normalizePresetString,
+  abbreviatePreset,
+  derivePresetInitials,
+  normalizePresetSlot,
+  PRESET_PLACEHOLDER
 };

web/public/assets/js/app/chat-log-highlights.js

@@ -0,0 +1,258 @@
+/*
+ * Copyright (C) 2025 l5yth
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { buildTelemetryDisplayEntries, collectTelemetryMetrics, fmtAlt } from './short-info-telemetry.js';
+
+/**
+ * Field descriptors inspected when highlighting position updates.
+ *
+ * Each entry describes a label, possible property names to inspect within a
+ * position payload, and a formatter that converts the raw value into a string.
+ *
+ * @type {Array<{
+ *   label: string,
+ *   sources: Array<string>,
+ *   formatter: (value: *) => string,
+ *   suppressZero?: boolean
+ * }>}
+ */
+const POSITION_HIGHLIGHT_FIELDS = Object.freeze([
+  { label: 'Lat', sources: ['latitude', 'lat', 'latitude_i'], formatter: value => formatCoordinate(value, 5) },
+  { label: 'Lon', sources: ['longitude', 'lon', 'longitude_i'], formatter: value => formatCoordinate(value, 5) },
+  { label: 'Alt', sources: ['altitude', 'alt'], formatter: value => fmtAlt(value, 'm'), suppressZero: true },
+  {
+    label: 'Accuracy',
+    sources: ['accuracy', 'pos_accuracy', 'position_accuracy', 'horizontal_accuracy', 'horz_accuracy'],
+    formatter: value => fmtAlt(value, 'm'),
+    suppressZero: true,
+  },
+  { label: 'Speed', sources: ['speed', 'ground_speed', 'groundSpeed'], formatter: formatSpeed, suppressZero: true },
+  { label: 'Heading', sources: ['heading', 'course', 'bearing'], formatter: formatHeading },
+  { label: 'Sats', sources: ['satellites', 'sats', 'num_sats', 'numSats'], formatter: formatInteger },
+]);
+
+/**
+ * Convert arbitrary values to finite numbers when possible.
+ *
+ * @param {*} value Raw value.
+ * @returns {?number} Normalised finite number or ``null`` for invalid input.
+ */
+function toFiniteNumber(value) {
+  if (value == null || value === '') {
+    return null;
+  }
+  const number = typeof value === 'number' ? value : Number(value);
+  return Number.isFinite(number) ? number : null;
+}
+
+/**
+ * Extract the first present value from ``source`` using ``keys``.
+ *
+ * @param {?Object} source Candidate container.
+ * @param {Array<string>} keys Ordered list of property names.
+ * @returns {*} First non-nullish value or ``null`` when absent.
+ */
+function pickFirstValueWithKey(source, keys) {
+  if (!source || typeof source !== 'object' || !Array.isArray(keys)) {
+    return null;
+  }
+  for (const key of keys) {
+    if (!Object.prototype.hasOwnProperty.call(source, key)) {
+      continue;
+    }
+    const value = source[key];
+    if (value == null || value === '') {
+      continue;
+    }
+    return { value, key };
+  }
+  return null;
+}
+
+/**
+ * Retrieve position values from the provided payload.
+ *
+ * @param {*} positionPayload Raw position record.
+ * @param {Array<string>} keys Candidate property names.
+ * @returns {{value: *, key: string}|null} First value discovered in any supported container.
+ */
+function extractPositionValue(positionPayload, keys) {
+  if (!positionPayload || typeof positionPayload !== 'object') {
+    return null;
+  }
+  const containers = [positionPayload];
+  const nestedCandidates = ['position', 'gps'];
+  for (const property of nestedCandidates) {
+    if (positionPayload[property] && typeof positionPayload[property] === 'object') {
+      containers.push(positionPayload[property]);
+    }
+  }
+  for (const container of containers) {
+    const result = pickFirstValueWithKey(container, keys);
+    if (result) {
+      return result;
+    }
+  }
+  return null;
+}
+
+/**
+ * Normalise raw position values based on the originating property.
+ *
+ * @param {*} value Raw value extracted from the payload.
+ * @param {string} [sourceKey] Property name the value originated from.
+ * @returns {*} Normalised value ready for formatting.
+ */
+function normalizePositionValue(value, sourceKey) {
+  if (value == null || value === '') {
+    return value;
+  }
+  if (typeof sourceKey === 'string' && sourceKey.endsWith('_i')) {
+    const numeric = toFiniteNumber(value);
+    return numeric == null ? value : numeric / 1_000_000;
+  }
+  if (typeof sourceKey === 'string' && ['latitude', 'longitude', 'lat', 'lon'].includes(sourceKey)) {
+    const numeric = toFiniteNumber(value);
+    if (numeric != null && Math.abs(numeric) > 180 && Math.abs(numeric) <= 180_000_000) {
+      return numeric / 1_000_000;
+    }
+  }
+  return value;
+}
+
+/**
+ * Format coordinate values with a configurable precision.
+ *
+ * @param {*} value Raw coordinate value.
+ * @param {number} [decimals=5] Decimal precision applied when formatting.
+ * @returns {string} Formatted coordinate string or an empty string on failure.
+ */
+function formatCoordinate(value, decimals = 5) {
+  if (value == null || value === '') {
+    return '';
+  }
+  const numeric = toFiniteNumber(value);
+  if (numeric == null) {
+    return '';
+  }
+  return numeric.toFixed(decimals);
+}
+
+/**
+ * Format velocity readings in metres per second.
+ *
+ * @param {*} value Raw speed value.
+ * @returns {string} Formatted speed string or an empty string when absent.
+ */
+function formatSpeed(value) {
+  const numeric = toFiniteNumber(value);
+  if (numeric == null) {
+    return '';
+  }
+  return `${numeric.toFixed(1)} m/s`;
+}
+
+/**
+ * Format directional readings in degrees.
+ *
+ * @param {*} value Raw heading value.
+ * @returns {string} Heading string or an empty string when invalid.
+ */
+function formatHeading(value) {
+  const numeric = toFiniteNumber(value);
+  if (numeric == null) {
+    return '';
+  }
+  return `${Math.round(numeric)}°`;
+}
+
+/**
+ * Format integer-like values such as satellite counts.
+ *
+ * @param {*} value Raw numeric input.
+ * @returns {string} Integer string or an empty string on failure.
+ */
+function formatInteger(value) {
+  const numeric = toFiniteNumber(value);
+  if (numeric == null) {
+    return '';
+  }
+  return String(Math.round(numeric));
+}
+
+/**
+ * Build highlight entries for telemetry broadcasts.
+ *
+ * The returned collection contains label/value tuples describing only the
+ * fields present within ``telemetryPayload``.
+ *
+ * @param {*} telemetryPayload Raw telemetry record.
+ * @returns {Array<{label: string, value: string}>} Highlight entries.
+ */
+export function formatTelemetryHighlights(telemetryPayload) {
+  if (!telemetryPayload || typeof telemetryPayload !== 'object') {
+    return [];
+  }
+  const metrics = collectTelemetryMetrics(telemetryPayload);
+  if (!metrics || Object.keys(metrics).length === 0) {
+    return [];
+  }
+  const entries = buildTelemetryDisplayEntries(metrics);
+  return entries.map(entry => ({ label: entry.label, value: entry.value }));
+}
+
+/**
+ * Build highlight entries for position broadcasts.
+ *
+ * Only non-empty values discovered in the payload are returned.
+ *
+ * @param {*} positionPayload Raw position record.
+ * @returns {Array<{label: string, value: string}>} Highlight entries.
+ */
+export function formatPositionHighlights(positionPayload) {
+  if (!positionPayload || typeof positionPayload !== 'object') {
+    return [];
+  }
+  const highlights = [];
+  for (const field of POSITION_HIGHLIGHT_FIELDS) {
+    const extracted = extractPositionValue(positionPayload, field.sources);
+    if (!extracted || extracted.value == null || extracted.value === '') {
+      continue;
+    }
+    const rawValue = normalizePositionValue(extracted.value, extracted.key);
+    if (field.suppressZero) {
+      const numeric = toFiniteNumber(rawValue);
+      if (numeric === 0) {
+        continue;
+      }
+    }
+    let formatted = field.formatter(rawValue);
+    if (formatted == null) {
+      continue;
+    }
+    formatted = String(formatted).trim();
+    if (formatted.length === 0) {
+      continue;
+    }
+    highlights.push({ label: field.label, value: formatted });
+  }
+  return highlights;
+}
+
+export default {
+  formatTelemetryHighlights,
+  formatPositionHighlights,
+};

web/public/assets/js/app/chat-log-tabs.js

@@ -0,0 +1,414 @@
+/*
+ * Copyright (C) 2025 l5yth
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { extractModemMetadata } from './node-modem-metadata.js';
+
+/**
+ * Highest channel index that should be represented within the tab view.
+ * @type {number}
+ */
+export const MAX_CHANNEL_INDEX = 9;
+
+/**
+ * Discrete event types that can appear in the chat activity log.
+ *
+ * @type {{
+ *   NODE_NEW: 'node-new',
+ *   NODE_INFO: 'node-info',
+ *   TELEMETRY: 'telemetry',
+ *   POSITION: 'position',
+ *   NEIGHBOR: 'neighbor'
+ * }}
+ */
+export const CHAT_LOG_ENTRY_TYPES = Object.freeze({
+  NODE_NEW: 'node-new',
+  NODE_INFO: 'node-info',
+  TELEMETRY: 'telemetry',
+  POSITION: 'position',
+  NEIGHBOR: 'neighbor',
+  MESSAGE_ENCRYPTED: 'message-encrypted'
+});
+
+/**
+ * Build a data model describing the content for chat tabs.
+ *
+ * Entries outside the recent activity window, encrypted messages, and
+ * channels above {@link MAX_CHANNEL_INDEX} are filtered out.
+ *
+ * @param {{
+ *   nodes?: Array<Object>,
+ *   telemetry?: Array<Object>,
+ *   positions?: Array<Object>,
+ *   neighbors?: Array<Object>,
+ *   messages?: Array<Object>,
+ *   nowSeconds: number,
+ *   windowSeconds: number,
+ *   maxChannelIndex?: number,
+ *   primaryChannelFallbackLabel?: string|null
+ * }} params Aggregation inputs.
+ * @returns {{
+ *   logEntries: Array<{ ts: number, type: string, nodeId?: string, nodeNum?: number }>,
+ *   channels: Array<{ id: string, index: number, label: string, entries: Array<{ ts: number, message: Object }> }>
+ * }} Sorted tab model data.
+ */
+export function buildChatTabModel({
+  nodes = [],
+  telemetry = [],
+  positions = [],
+  neighbors = [],
+  messages = [],
+  nowSeconds,
+  windowSeconds,
+  maxChannelIndex = MAX_CHANNEL_INDEX,
+  primaryChannelFallbackLabel = null
+}) {
+  const cutoff = (Number.isFinite(nowSeconds) ? nowSeconds : 0) - (Number.isFinite(windowSeconds) ? windowSeconds : 0);
+  const logEntries = [];
+  const channelBuckets = new Map();
+  const primaryChannelEnvLabel = normalisePrimaryChannelEnvLabel(primaryChannelFallbackLabel);
+
+  for (const node of nodes || []) {
+    if (!node) continue;
+    const nodeId = normaliseNodeId(node);
+    const nodeNum = normaliseNodeNum(node);
+    const firstTs = resolveTimestampSeconds(node.first_heard ?? node.firstHeard, node.first_heard_iso ?? node.firstHeardIso);
+    if (firstTs != null && firstTs >= cutoff) {
+      logEntries.push({ ts: firstTs, type: CHAT_LOG_ENTRY_TYPES.NODE_NEW, node, nodeId, nodeNum });
+    }
+    const lastTs = resolveTimestampSeconds(node.last_heard ?? node.lastHeard, node.last_seen_iso ?? node.lastSeenIso);
+    if (lastTs != null && lastTs >= cutoff) {
+      logEntries.push({ ts: lastTs, type: CHAT_LOG_ENTRY_TYPES.NODE_INFO, node, nodeId, nodeNum });
+    }
+  }
+
+  for (const telemetryEntry of telemetry || []) {
+    if (!telemetryEntry) continue;
+    const ts = resolveTimestampSeconds(
+      telemetryEntry.rx_time ?? telemetryEntry.rxTime ?? telemetryEntry.telemetry_time ?? telemetryEntry.telemetryTime,
+      telemetryEntry.rx_iso ?? telemetryEntry.rxIso ?? telemetryEntry.telemetry_time_iso ?? telemetryEntry.telemetryTimeIso
+    );
+    if (ts == null || ts < cutoff) continue;
+    const nodeId = normaliseNodeId(telemetryEntry);
+    const nodeNum = normaliseNodeNum(telemetryEntry);
+    logEntries.push({ ts, type: CHAT_LOG_ENTRY_TYPES.TELEMETRY, telemetry: telemetryEntry, nodeId, nodeNum });
+  }
+
+  for (const positionEntry of positions || []) {
+    if (!positionEntry) continue;
+    const ts = resolveTimestampSeconds(
+      positionEntry.rx_time ?? positionEntry.rxTime ?? positionEntry.position_time ?? positionEntry.positionTime,
+      positionEntry.rx_iso ?? positionEntry.rxIso ?? positionEntry.position_time_iso ?? positionEntry.positionTimeIso
+    );
+    if (ts == null || ts < cutoff) continue;
+    const nodeId = normaliseNodeId(positionEntry);
+    const nodeNum = normaliseNodeNum(positionEntry);
+    logEntries.push({ ts, type: CHAT_LOG_ENTRY_TYPES.POSITION, position: positionEntry, nodeId, nodeNum });
+  }
+
+  for (const neighborEntry of neighbors || []) {
+    if (!neighborEntry) continue;
+    const ts = resolveTimestampSeconds(neighborEntry.rx_time ?? neighborEntry.rxTime, neighborEntry.rx_iso ?? neighborEntry.rxIso);
+    if (ts == null || ts < cutoff) continue;
+    const nodeId = normaliseNodeId(neighborEntry);
+    const nodeNum = normaliseNodeNum(neighborEntry);
+    const neighborId = normaliseNeighborId(neighborEntry);
+    logEntries.push({ ts, type: CHAT_LOG_ENTRY_TYPES.NEIGHBOR, neighbor: neighborEntry, nodeId, nodeNum, neighborId });
+  }
+
+  for (const message of messages || []) {
+    if (!message) continue;
+    const ts = resolveTimestampSeconds(message.rx_time ?? message.rxTime, message.rx_iso ?? message.rxIso);
+    if (ts == null || ts < cutoff) continue;
+
+    if (message.encrypted) {
+      logEntries.push({ ts, type: CHAT_LOG_ENTRY_TYPES.MESSAGE_ENCRYPTED, message });
+      continue;
+    }
+
+    const rawIndex = message.channel ?? message.channel_index ?? message.channelIndex;
+    const channelIndex = normaliseChannelIndex(rawIndex);
+    if (channelIndex != null && channelIndex > maxChannelIndex) {
+      continue;
+    }
+    const channelName = normaliseChannelName(
+      message.channel_name ?? message.channelName ?? message.channel_display ?? message.channelDisplay
+    );
+    const safeIndex = channelIndex != null && channelIndex >= 0 ? channelIndex : 0;
+    const modemPreset = safeIndex === 0 ? extractModemMetadata(message).modemPreset : null;
+    const labelInfo = resolveChannelLabel({
+      index: safeIndex,
+      channelName,
+      modemPreset,
+      envFallbackLabel: primaryChannelEnvLabel
+    });
+    const bucketKey = buildChannelBucketKey(safeIndex, safeIndex === 0 && labelInfo.label !== '0' ? labelInfo.label : null);
+    let bucket = channelBuckets.get(bucketKey);
+    if (!bucket) {
+      bucket = {
+        key: bucketKey,
+        id: buildChannelTabId(bucketKey),
+        index: safeIndex,
+        label: labelInfo.label,
+        entries: [],
+        labelPriority: labelInfo.priority,
+        isPrimaryFallback: bucketKey === '0'
+      };
+      channelBuckets.set(bucketKey, bucket);
+    } else {
+      const existingPriority = bucket.labelPriority ?? CHANNEL_LABEL_PRIORITY.INDEX;
+      if ((labelInfo.priority ?? CHANNEL_LABEL_PRIORITY.INDEX) > existingPriority) {
+        bucket.label = labelInfo.label;
+        bucket.labelPriority = labelInfo.priority;
+      }
+    }
+
+    bucket.entries.push({ ts, message });
+  }
+
+  logEntries.sort((a, b) => a.ts - b.ts);
+
+  let hasPrimaryBucket = false;
+  for (const bucket of channelBuckets.values()) {
+    if (bucket.index === 0) {
+      hasPrimaryBucket = true;
+      break;
+    }
+  }
+  if (!hasPrimaryBucket) {
+    const bucketKey = '0';
+    channelBuckets.set(bucketKey, {
+      key: bucketKey,
+      id: buildChannelTabId(bucketKey),
+      index: 0,
+      label: '0',
+      entries: [],
+      labelPriority: CHANNEL_LABEL_PRIORITY.INDEX,
+      isPrimaryFallback: true
+    });
+  }
+
+  const channels = Array.from(channelBuckets.values()).sort((a, b) => {
+    if (a.index !== b.index) {
+      return a.index - b.index;
+    }
+    return a.label.localeCompare(b.label);
+  });
+  for (const channel of channels) {
+    channel.entries.sort((a, b) => a.ts - b.ts);
+  }
+
+  return { logEntries, channels };
+}
+
+/**
+ * Extract a canonical node identifier from a payload when available.
+ *
+ * @param {*} value Arbitrary payload candidate.
+ * @returns {?string} Canonical node identifier.
+ */
+function normaliseNodeId(value) {
+  if (!value || typeof value !== 'object') return null;
+  const raw = value.node_id ?? value.nodeId ?? null;
+  return typeof raw === 'string' && raw.trim().length ? raw.trim() : null;
+}
+
+/**
+ * Extract a canonical neighbour identifier from a payload when available.
+ *
+ * @param {*} value Arbitrary payload candidate.
+ * @returns {?string} Canonical neighbour identifier.
+ */
+function normaliseNeighborId(value) {
+  if (!value || typeof value !== 'object') return null;
+  const raw = value.neighbor_id ?? value.neighborId ?? null;
+  if (typeof raw === 'string' && raw.trim().length) {
+    return raw.trim();
+  }
+  return null;
+}
+
+/**
+ * Extract a finite node number from a payload when available.
+ *
+ * @param {*} value Arbitrary payload candidate.
+ * @returns {?number} Canonical numeric identifier.
+ */
+function normaliseNodeNum(value) {
+  if (!value || typeof value !== 'object') return null;
+  const raw = value.node_num ?? value.nodeNum ?? value.num;
+  if (raw == null || raw === '') return null;
+  if (typeof raw === 'number') {
+    return Number.isFinite(raw) ? raw : null;
+  }
+  const parsed = Number(raw);
+  return Number.isFinite(parsed) ? parsed : null;
+}
+
+/**
+ * Convert candidate values to timestamp seconds when possible.
+ *
+ * @param {*} numeric Numeric timestamp representation.
+ * @param {*} isoString ISO timestamp fallback.
+ * @returns {?number} Timestamp in seconds when parsing succeeds.
+ */
+export function resolveTimestampSeconds(numeric, isoString) {
+  if (numeric !== null && numeric !== undefined && numeric !== '') {
+    const numericValue = typeof numeric === 'number' ? numeric : Number(numeric);
+    if (Number.isFinite(numericValue)) {
+      return numericValue;
+    }
+  }
+  if (typeof isoString === 'string' && isoString.length) {
+    const parsed = Date.parse(isoString);
+    if (Number.isFinite(parsed)) {
+      return parsed / 1000;
+    }
+  }
+  return null;
+}
+
+/**
+ * Sanitise channel identifiers into bounded integers.
+ *
+ * @param {*} value Raw channel index candidate.
+ * @returns {?number} Non-negative integer when available.
+ */
+export function normaliseChannelIndex(value) {
+  if (value == null || value === '') {
+    return null;
+  }
+  if (typeof value === 'number') {
+    if (!Number.isFinite(value)) return null;
+    return Math.trunc(value);
+  }
+  if (typeof value === 'string') {
+    const trimmed = value.trim();
+    if (!trimmed) return null;
+    const parsed = Number(trimmed);
+    if (!Number.isFinite(parsed)) return null;
+    return Math.trunc(parsed);
+  }
+  return null;
+}
+
+/**
+ * Normalise channel names to trimmed display strings.
+ *
+ * @param {*} value Raw channel name candidate.
+ * @returns {?string} Cleaned channel label when present.
+ */
+export function normaliseChannelName(value) {
+  if (value == null) return null;
+  if (typeof value === 'string') {
+    const trimmed = value.trim();
+    return trimmed.length > 0 ? trimmed : null;
+  }
+  if (typeof value === 'number' && Number.isFinite(value)) {
+    return String(value);
+  }
+  return null;
+}
+
+function buildChannelBucketKey(index, primaryChannelLabel) {
+  const safeIndex = Number.isFinite(index) ? Math.max(0, Math.trunc(index)) : 0;
+  if (safeIndex === 0 && primaryChannelLabel) {
+    const trimmed = primaryChannelLabel.trim();
+    if (trimmed.length > 0 && trimmed !== '0') {
+      return `0::${trimmed.toLowerCase()}`;
+    }
+  }
+  return String(safeIndex);
+}
+
+function buildChannelTabId(bucketKey) {
+  if (bucketKey === '0') {
+    return 'channel-0';
+  }
+  const slug = slugify(bucketKey);
+  if (slug) {
+    if (slug !== '0') {
+      return `channel-${slug}`;
+    }
+    return `channel-${slug}-${hashChannelKey(bucketKey)}`;
+  }
+  return `channel-${hashChannelKey(bucketKey)}`;
+}
+
+function slugify(value) {
+  if (value == null) return '';
+  return String(value)
+    .toLowerCase()
+    .replace(/[^a-z0-9]+/g, '-')
+    .replace(/-+/g, '-')
+    .replace(/^-+|-+$/g, '');
+}
+
+function hashChannelKey(value) {
+  const input = String(value ?? '');
+  if (!input) {
+    return '0';
+  }
+  let hash = 0;
+  for (let i = 0; i < input.length; i += 1) {
+    hash = (hash * 31 + input.charCodeAt(i)) | 0;
+  }
+  if (hash < 0) {
+    hash = (hash * -1) >>> 0;
+  }
+  return hash.toString(36);
+}
+
+const CHANNEL_LABEL_PRIORITY = Object.freeze({
+  INDEX: 0,
+  ENV: 1,
+  MODEM: 2,
+  NAME: 3
+});
+
+function resolveChannelLabel({ index, channelName, modemPreset, envFallbackLabel }) {
+  const safeIndex = Number.isFinite(index) ? Math.max(0, Math.trunc(index)) : 0;
+  if (safeIndex === 0) {
+    if (channelName) {
+      return { label: channelName, priority: CHANNEL_LABEL_PRIORITY.NAME };
+    }
+    if (modemPreset) {
+      return { label: modemPreset, priority: CHANNEL_LABEL_PRIORITY.MODEM };
+    }
+    if (envFallbackLabel) {
+      return { label: envFallbackLabel, priority: CHANNEL_LABEL_PRIORITY.ENV };
+    }
+    return { label: '0', priority: CHANNEL_LABEL_PRIORITY.INDEX };
+  }
+  if (channelName) {
+    return { label: channelName, priority: CHANNEL_LABEL_PRIORITY.NAME };
+  }
+  return { label: String(safeIndex), priority: CHANNEL_LABEL_PRIORITY.INDEX };
+}
+
+function normalisePrimaryChannelEnvLabel(value) {
+  const trimmed = normaliseChannelName(value);
+  if (!trimmed) {
+    return null;
+  }
+  const withoutHash = trimmed.replace(/^#+/, '').trim();
+  return withoutHash.length > 0 ? withoutHash : null;
+}
+
+export const __test__ = {
+  resolveTimestampSeconds,
+  normaliseChannelIndex,
+  normaliseChannelName
+};

web/public/assets/js/app/chat-search.js

@@ -0,0 +1,220 @@
+/*
+ * Copyright (C) 2025 l5yth
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { CHAT_LOG_ENTRY_TYPES } from './chat-log-tabs.js';
+import { formatPositionHighlights, formatTelemetryHighlights } from './chat-log-highlights.js';
+
+const BASE_SEARCH_KEYS = Object.freeze([
+  'node_id',
+  'nodeId',
+  'id',
+  'node_num',
+  'nodeNum',
+  'num',
+  'short_name',
+  'shortName',
+  'long_name',
+  'longName',
+  'name',
+  'role',
+  'hw_model',
+  'hwModel',
+  'neighbor_id',
+  'neighborId'
+]);
+
+const MESSAGE_EXTRA_KEYS = Object.freeze([
+  'text',
+  'emoji',
+  'channel',
+  'channel_index',
+  'channelIndex',
+  'channel_name',
+  'channelName',
+  'channel_display',
+  'channelDisplay',
+  'from_id',
+  'fromId',
+  'to_id',
+  'toId',
+  'reply_id',
+  'replyId'
+]);
+
+/**
+ * Normalise arbitrary input into a comparable, lower-cased string.
+ *
+ * @param {*} value User-supplied input.
+ * @returns {string} Trimmed, lower-cased query string.
+ */
+export function normaliseChatFilterQuery(value) {
+  if (value == null) {
+    return '';
+  }
+  const text = String(value).trim().toLowerCase();
+  return text;
+}
+
+/**
+ * Apply chat filtering to log entries and channel buckets.
+ *
+ * @param {{ logEntries?: Array<Object>, channels?: Array<Object> }} model Chat tab model.
+ * @param {*} query Filter query supplied by the user.
+ * @returns {{ logEntries: Array<Object>, channels: Array<Object> }} Filtered model.
+ */
+export function filterChatModel(model = {}, query) {
+  const logEntries = Array.isArray(model.logEntries) ? model.logEntries : [];
+  const channels = Array.isArray(model.channels) ? model.channels : [];
+  const normalisedQuery = normaliseChatFilterQuery(query);
+  if (!normalisedQuery) {
+    return { logEntries, channels };
+  }
+  const filteredLogs = logEntries.filter(entry => chatLogEntryMatchesQuery(entry, normalisedQuery));
+  const filteredChannels = channels.map(channel => ({
+    ...channel,
+    entries: Array.isArray(channel.entries)
+      ? channel.entries.filter(item => chatMessageMatchesQuery(item?.message, normalisedQuery))
+      : []
+  }));
+  return { logEntries: filteredLogs, channels: filteredChannels };
+}
+
+/**
+ * Determine whether a structured chat log entry matches the query.
+ *
+ * @param {?Object} entry Chat log entry.
+ * @param {string} query Normalised filter query.
+ * @returns {boolean} True when the entry should remain visible.
+ */
+export function chatLogEntryMatchesQuery(entry, query) {
+  if (!query) return true;
+  if (!entry || typeof entry !== 'object') {
+    return false;
+  }
+  const candidates = [];
+  candidates.push(...collectSearchValues(entry.node));
+  candidates.push(...collectSearchValues(entry.telemetry));
+  candidates.push(...collectSearchValues(entry.position));
+  candidates.push(...collectSearchValues(entry.neighbor));
+  candidates.push(...collectSearchValues(entry.neighborNode));
+  if (entry.nodeId) candidates.push(entry.nodeId);
+  if (entry.nodeNum != null && entry.nodeNum !== '') candidates.push(entry.nodeNum);
+  if (entry.neighborId) candidates.push(entry.neighborId);
+  if (entry.type) candidates.push(entry.type);
+
+  if (entry.type === CHAT_LOG_ENTRY_TYPES.MESSAGE_ENCRYPTED) {
+    if (entry.message && chatMessageMatchesQuery(entry.message, query)) {
+      return true;
+    }
+  } else if (entry.type === CHAT_LOG_ENTRY_TYPES.TELEMETRY) {
+    const telemetryHighlights = formatTelemetryHighlights(entry.telemetry || {});
+    candidates.push(...highlightsToStrings(telemetryHighlights));
+  } else if (entry.type === CHAT_LOG_ENTRY_TYPES.POSITION) {
+    const positionHighlights = formatPositionHighlights(entry.position || {});
+    candidates.push(...highlightsToStrings(positionHighlights));
+  } else if (entry.type === CHAT_LOG_ENTRY_TYPES.NEIGHBOR) {
+    if (entry.neighbor && entry.neighbor.neighbor_id) {
+      candidates.push(entry.neighbor.neighbor_id);
+    }
+  }
+
+  return candidates.some(value => valueIncludesQuery(value, query));
+}
+
+/**
+ * Determine whether a mesh message matches the active query.
+ *
+ * @param {?Object} message Chat message payload.
+ * @param {string} query Normalised filter query.
+ * @returns {boolean} True when the message should be shown.
+ */
+export function chatMessageMatchesQuery(message, query) {
+  if (!query) return true;
+  if (!message || typeof message !== 'object') {
+    return false;
+  }
+  const candidates = [
+    ...collectSearchValues(message, MESSAGE_EXTRA_KEYS),
+    ...collectSearchValues(message.node),
+  ];
+  return candidates.some(value => valueIncludesQuery(value, query));
+}
+
+function highlightsToStrings(highlights) {
+  if (!Array.isArray(highlights)) {
+    return [];
+  }
+  return highlights
+    .map(entry => {
+      if (!entry || typeof entry !== 'object') {
+        return null;
+      }
+      const label = entry.label != null ? String(entry.label).trim() : '';
+      const value = entry.value != null ? String(entry.value).trim() : '';
+      return `${label} ${value}`.trim();
+    })
+    .filter(Boolean);
+}
+
+function collectSearchValues(source, extraKeys = []) {
+  if (!source || typeof source !== 'object') {
+    return [];
+  }
+  const values = [];
+  const keys = extraKeys.length ? [...BASE_SEARCH_KEYS, ...extraKeys] : BASE_SEARCH_KEYS;
+  for (const key of keys) {
+    if (!Object.prototype.hasOwnProperty.call(source, key)) {
+      continue;
+    }
+    const value = source[key];
+    if (value == null || value === '') {
+      continue;
+    }
+    if (typeof value === 'object') {
+      continue;
+    }
+    values.push(value);
+  }
+  return values;
+}
+
+function valueIncludesQuery(value, query) {
+  if (!query) return true;
+  if (value == null) {
+    return false;
+  }
+  if (typeof value === 'number') {
+    if (!Number.isFinite(value)) {
+      return false;
+    }
+    return String(value).toLowerCase().includes(query);
+  }
+  if (typeof value === 'boolean') {
+    return (value ? 'true' : 'false').includes(query);
+  }
+  const text = String(value).trim();
+  if (!text) {
+    return false;
+  }
+  return text.toLowerCase().includes(query);
+}
+
+export default {
+  normaliseChatFilterQuery,
+  filterChatModel,
+  chatLogEntryMatchesQuery,
+  chatMessageMatchesQuery
+};

web/public/assets/js/app/chat-tabs.js

@@ -0,0 +1,187 @@
+/*
+ * Copyright (C) 2025 l5yth
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Render an accessible tab interface within ``container``.
+ *
+ * @param {{
+ *   document: Document,
+ *   container: HTMLElement,
+ *   tabs: Array<{ id: string, label: string, content: Node|null }>,
+ *   previousActiveTabId?: string|null,
+ *   defaultActiveTabId?: string|null
+ * }} options Rendering parameters.
+ * @returns {?string} Identifier of the active tab after rendering.
+ */
+export function renderChatTabs({
+  document,
+  container,
+  tabs,
+  previousActiveTabId = null,
+  defaultActiveTabId = null
+}) {
+  if (!container || !document) {
+    return null;
+  }
+  const validTabs = Array.isArray(tabs) ? tabs.filter(Boolean) : [];
+  if (validTabs.length === 0) {
+    if (typeof container.replaceChildren === 'function') {
+      container.replaceChildren();
+    } else {
+      container.innerHTML = '';
+    }
+    container.dataset.activeTab = '';
+    return null;
+  }
+
+  const fragment = createFragment(document);
+  const tabList = document.createElement('div');
+  tabList.className = 'chat-tablist';
+  tabList.setAttribute('role', 'tablist');
+
+  const panelWrapper = document.createElement('div');
+  panelWrapper.className = 'chat-tabpanels';
+
+  fragment.appendChild(tabList);
+  fragment.appendChild(panelWrapper);
+
+  const tabElements = [];
+  const existingActive = container.dataset?.activeTab || null;
+  const activeCandidateOrder = [existingActive, previousActiveTabId, defaultActiveTabId];
+  let activeTabId = null;
+
+  const idSet = new Set();
+  for (const tab of validTabs) {
+    if (!tab || typeof tab.id !== 'string' || tab.id.length === 0) {
+      continue;
+    }
+    const uniqueId = tab.id;
+    if (idSet.has(uniqueId)) {
+      continue;
+    }
+    idSet.add(uniqueId);
+    const button = document.createElement('button');
+    button.type = 'button';
+    button.className = 'chat-tab';
+    button.classList.add('chat-tab');
+    button.setAttribute('role', 'tab');
+    button.setAttribute('id', `chat-tab-${uniqueId}`);
+    button.dataset.tabId = uniqueId;
+    button.textContent = tab.label || '';
+    button.setAttribute('aria-selected', 'false');
+    button.setAttribute('tabindex', '-1');
+
+    const panel = document.createElement('div');
+    panel.className = 'chat-tabpanel';
+    panel.classList.add('chat-tabpanel');
+    panel.setAttribute('role', 'tabpanel');
+    panel.setAttribute('id', `chat-panel-${uniqueId}`);
+    panel.setAttribute('aria-labelledby', button.getAttribute('id'));
+    panel.hidden = true;
+
+    if (tab.content) {
+      panel.appendChild(tab.content);
+    }
+
+    tabList.appendChild(button);
+    panelWrapper.appendChild(panel);
+    tabElements.push({ id: uniqueId, button, panel });
+  }
+
+  if (tabElements.length === 0) {
+    if (typeof container.replaceChildren === 'function') {
+      container.replaceChildren();
+    } else {
+      container.innerHTML = '';
+    }
+    container.dataset.activeTab = '';
+    return null;
+  }
+
+  for (const candidate of activeCandidateOrder) {
+    if (candidate && tabElements.some(entry => entry.id === candidate)) {
+      activeTabId = candidate;
+      break;
+    }
+  }
+  if (!activeTabId) {
+    activeTabId = tabElements[0].id;
+  }
+
+  if (typeof container.replaceChildren === 'function') {
+    container.replaceChildren(fragment);
+  } else {
+    container.innerHTML = '';
+    container.appendChild(fragment);
+  }
+
+  const setActiveTab = newId => {
+    if (!newId) return;
+    let matched = false;
+    for (const entry of tabElements) {
+      const isActive = entry.id === newId;
+      entry.button.setAttribute('aria-selected', isActive ? 'true' : 'false');
+      entry.button.setAttribute('tabindex', isActive ? '0' : '-1');
+      if (isActive) {
+        entry.button.classList.add('is-active');
+        entry.panel.hidden = false;
+        matched = true;
+        container.dataset.activeTab = newId;
+        if (typeof entry.panel.scrollHeight === 'number' && typeof entry.panel.scrollTop === 'number') {
+          entry.panel.scrollTop = entry.panel.scrollHeight;
+        }
+      } else {
+        entry.button.classList.remove('is-active');
+        entry.panel.hidden = true;
+      }
+    }
+    if (!matched) {
+      container.dataset.activeTab = '';
+    }
+  };
+
+  setActiveTab(activeTabId);
+
+  for (const entry of tabElements) {
+    entry.button.addEventListener('click', () => {
+      setActiveTab(entry.id);
+    });
+  }
+
+  return container.dataset.activeTab || null;
+}
+
+/**
+ * Create a DOM fragment with a graceful fallback for test environments.
+ *
+ * @param {Document} document Active document instance.
+ * @returns {{ appendChild: Function }} Fragment-like node.
+ */
+function createFragment(document) {
+  if (document && typeof document.createDocumentFragment === 'function') {
+    return document.createDocumentFragment();
+  }
+  const nodes = [];
+  return {
+    childNodes: nodes,
+    appendChild(node) {
+      nodes.push(node);
+      return node;
+    }
+  };
+}
+
+export const __test__ = { createFragment };

web/public/assets/js/app/instance-selector.js

@@ -0,0 +1,217 @@
+/*
+ * Copyright (C) 2025 l5yth
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Determine the most suitable label for an instance list entry.
+ *
+ * @param {{ name?: string, domain?: string }} entry Instance record as returned by the API.
+ * @returns {string} Preferred display label falling back to the domain.
+ */
+function resolveInstanceLabel(entry) {
+  if (!entry || typeof entry !== 'object') {
+    return '';
+  }
+
+  const name = typeof entry.name === 'string' ? entry.name.trim() : '';
+  if (name.length > 0) {
+    return name;
+  }
+
+  const domain = typeof entry.domain === 'string' ? entry.domain.trim() : '';
+  return domain;
+}
+
+/**
+ * Construct a navigable URL for the provided instance domain.
+ *
+ * @param {string} domain Instance domain as returned by the federation catalog.
+ * @returns {string|null} Navigable absolute URL or ``null`` when the domain is empty.
+ */
+export function buildInstanceUrl(domain) {
+  if (typeof domain !== 'string') {
+    return null;
+  }
+
+  const trimmed = domain.trim();
+  if (!trimmed) {
+    return null;
+  }
+
+  if (/^[a-zA-Z][a-zA-Z\d+.-]*:\/\//.test(trimmed)) {
+    return trimmed;
+  }
+
+  return `https://${trimmed}`;
+}
+
+/**
+ * Populate and activate the federation instance selector control.
+ *
+ * @param {{
+ *   selectElement: HTMLSelectElement | null,
+ *   fetchImpl?: typeof fetch,
+ *   windowObject?: Window,
+ *   documentObject?: Document,
+ *   instanceDomain?: string,
+ *   defaultLabel?: string,
+ *   navigate?: (url: string) => void,
+ * }} options Configuration for the selector behaviour.
+ * @returns {Promise<void>} Promise resolving once the selector has been initialised.
+ */
+export async function initializeInstanceSelector(options) {
+  const {
+    selectElement,
+    fetchImpl = typeof fetch === 'function' ? fetch : null,
+    windowObject = typeof window !== 'undefined' ? window : undefined,
+    documentObject = typeof document !== 'undefined' ? document : undefined,
+    instanceDomain,
+    defaultLabel = 'Select region ...',
+    navigate,
+  } = options;
+
+  if (!selectElement || typeof selectElement !== 'object') {
+    return;
+  }
+
+  const doc = documentObject || windowObject?.document || null;
+
+  if (selectElement.options.length === 0) {
+    const optionFactory =
+      (doc && typeof doc.createElement === 'function')
+        ? doc.createElement.bind(doc)
+        : (typeof selectElement.ownerDocument?.createElement === 'function'
+            ? selectElement.ownerDocument.createElement.bind(selectElement.ownerDocument)
+            : null);
+
+    if (optionFactory) {
+      const placeholderOption = optionFactory('option');
+      placeholderOption.value = '';
+      placeholderOption.textContent = defaultLabel;
+      selectElement.appendChild(placeholderOption);
+    }
+  } else if (selectElement.options[0]) {
+    selectElement.options[0].textContent = defaultLabel;
+    selectElement.options[0].value = '';
+  }
+
+  if (typeof fetchImpl !== 'function') {
+    return;
+  }
+
+  let response;
+  try {
+    response = await fetchImpl('/api/instances', {
+      headers: { Accept: 'application/json' },
+      credentials: 'omit',
+    });
+  } catch (error) {
+    console.warn('Failed to load federation instances', error);
+    return;
+  }
+
+  if (!response || typeof response.json !== 'function') {
+    return;
+  }
+
+  if (!response.ok) {
+    return;
+  }
+
+  let payload;
+  try {
+    payload = await response.json();
+  } catch (error) {
+    console.warn('Invalid federation instances payload', error);
+    return;
+  }
+
+  if (!Array.isArray(payload)) {
+    return;
+  }
+
+  const sanitizedDomain = typeof instanceDomain === 'string' ? instanceDomain.trim().toLowerCase() : null;
+
+  const sortedEntries = payload
+    .filter(entry => entry && typeof entry.domain === 'string' && entry.domain.trim() !== '')
+    .map(entry => ({
+      domain: entry.domain.trim(),
+      label: resolveInstanceLabel(entry),
+    }))
+    .sort((a, b) => {
+      const labelA = a.label || a.domain;
+      const labelB = b.label || b.domain;
+      return labelA.localeCompare(labelB, undefined, { sensitivity: 'base' });
+    });
+
+  while (selectElement.options.length > 1) {
+    selectElement.remove(1);
+  }
+
+  let matchedIndex = 0;
+
+  sortedEntries.forEach((entry, index) => {
+    if (!doc || typeof doc.createElement !== 'function') {
+      return;
+    }
+
+    const option = doc.createElement('option');
+    const optionLabel = entry.label && entry.label.trim().length > 0 ? entry.label : entry.domain;
+    const label = optionLabel.trim();
+
+    option.value = entry.domain;
+    option.textContent = label;
+    option.dataset.instanceDomain = entry.domain;
+
+    selectElement.appendChild(option);
+
+    if (sanitizedDomain && entry.domain.toLowerCase() === sanitizedDomain) {
+      matchedIndex = index + 1;
+    }
+  });
+
+  if (matchedIndex > 0 && selectElement.options[matchedIndex]) {
+    selectElement.selectedIndex = matchedIndex;
+  } else {
+    selectElement.selectedIndex = 0;
+  }
+
+  const navigateTo = typeof navigate === 'function'
+    ? navigate
+    : url => {
+        if (!url || !windowObject || !windowObject.location) {
+          return;
+        }
+        if (typeof windowObject.location.assign === 'function') {
+          windowObject.location.assign(url);
+        } else {
+          windowObject.location.href = url;
+        }
+      };
+
+  selectElement.addEventListener('change', event => {
+    const target = event?.target;
+    if (!target || typeof target.value !== 'string' || target.value.trim() === '') {
+      return;
+    }
+
+    const url = buildInstanceUrl(target.value);
+    if (url) {
+      navigateTo(url);
+    }
+  });
+}
+
+export const __test__ = { resolveInstanceLabel };

web/public/assets/js/app/message-replies.js

@@ -0,0 +1,319 @@
+/*
+ * Copyright (C) 2025 l5yth
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Convert a value into a trimmed string or return ``null`` for blank inputs.
+ *
+ * @param {*} value Arbitrary input value.
+ * @returns {?string} Trimmed string when present, otherwise ``null``.
+ */
+function toTrimmedString(value) {
+  if (value == null) return null;
+  if (typeof value === 'string') {
+    const trimmed = value.trim();
+    return trimmed.length > 0 ? trimmed : null;
+  }
+  if (typeof value === 'number') {
+    if (!Number.isFinite(value)) return null;
+    return String(value);
+  }
+  const str = String(value).trim();
+  return str.length > 0 ? str : null;
+}
+
+/**
+ * Normalise a message identifier to a stable string key.
+ *
+ * @param {*} value Identifier candidate.
+ * @returns {?string} Canonical identifier.
+ */
+export function normaliseMessageId(value) {
+  const str = toTrimmedString(value);
+  if (!str) return null;
+  if (/^-?\d+$/.test(str)) {
+    const parsed = Number.parseInt(str, 10);
+    if (Number.isFinite(parsed)) {
+      return String(parsed);
+    }
+  }
+  return str;
+}
+
+/**
+ * Build a map of message identifiers to their payload objects.
+ *
+ * Duplicate identifiers retain the first occurrence encountered, mirroring the
+ * ingestion pipeline that treats message IDs as unique keys.
+ *
+ * @param {?Array<Object>} messages Message collection.
+ * @returns {Map<string, Object>} Identifier lookup.
+ */
+export function buildMessageIndex(messages) {
+  const index = new Map();
+  if (!Array.isArray(messages)) {
+    return index;
+  }
+  for (const message of messages) {
+    if (!message || typeof message !== 'object') {
+      continue;
+    }
+    const idValue = message.id ?? message.packet_id ?? message.packetId;
+    const key = normaliseMessageId(idValue);
+    if (!key || index.has(key)) {
+      continue;
+    }
+    index.set(key, message);
+  }
+  return index;
+}
+
+/**
+ * Return the list of identifier candidates associated with ``message``.
+ *
+ * @param {?Object} message Message payload.
+ * @returns {Array<string>} Identifier candidates.
+ */
+function candidateMessageIdentifiers(message) {
+  if (!message || typeof message !== 'object') {
+    return [];
+  }
+  const candidates = [
+    message.node_id ?? message.nodeId,
+    message.from_id ?? message.fromId,
+  ];
+  const unique = [];
+  for (const candidate of candidates) {
+    const trimmed = toTrimmedString(candidate);
+    if (!trimmed || unique.includes(trimmed)) {
+      continue;
+    }
+    unique.push(trimmed);
+  }
+  return unique;
+}
+
+/**
+ * Resolve the node metadata associated with ``message``.
+ *
+ * @param {?Object} message Message payload.
+ * @param {?Map<string, Object>} nodesById Node lookup table.
+ * @returns {?Object} Node object when available.
+ */
+function deriveMessageNode(message, nodesById) {
+  if (message && typeof message === 'object' && message.node && typeof message.node === 'object') {
+    return message.node;
+  }
+  if (!(nodesById instanceof Map)) {
+    return null;
+  }
+  for (const identifier of candidateMessageIdentifiers(message)) {
+    if (nodesById.has(identifier)) {
+      return nodesById.get(identifier);
+    }
+  }
+  return null;
+}
+
+/**
+ * Generate a short name fallback derived from a node identifier.
+ *
+ * @param {string} identifier Node identifier string.
+ * @returns {?string} Short name fallback.
+ */
+function fallbackShortFromIdentifier(identifier) {
+  const trimmed = toTrimmedString(identifier);
+  if (!trimmed) return null;
+  const core = trimmed.replace(/^!+/, '');
+  if (core.length >= 4) {
+    return core.slice(-4).toUpperCase();
+  }
+  if (trimmed.length >= 4) {
+    return trimmed.slice(-4).toUpperCase();
+  }
+  return trimmed.toUpperCase();
+}
+
+/**
+ * Determine the preferred short name for a reply badge.
+ *
+ * @param {?Object} message Message payload.
+ * @param {?Object} node Node metadata.
+ * @returns {?string} Short name candidate.
+ */
+function deriveShortCandidate(message, node) {
+  const candidates = [
+    node?.short_name,
+    node?.shortName,
+    message?.node?.short_name,
+    message?.node?.shortName,
+  ];
+  for (const candidate of candidates) {
+    const trimmed = toTrimmedString(candidate);
+    if (trimmed) return trimmed;
+  }
+  for (const identifier of candidateMessageIdentifiers(message)) {
+    const fallback = fallbackShortFromIdentifier(identifier);
+    if (fallback) return fallback;
+  }
+  return null;
+}
+
+/**
+ * Determine the preferred long name for a reply badge tooltip.
+ *
+ * @param {?Object} message Message payload.
+ * @param {?Object} node Node metadata.
+ * @returns {?string} Long name candidate.
+ */
+function deriveLongCandidate(message, node) {
+  const candidates = [
+    node?.long_name,
+    node?.longName,
+    message?.node?.long_name,
+    message?.node?.longName,
+  ];
+  for (const candidate of candidates) {
+    const trimmed = toTrimmedString(candidate);
+    if (trimmed) return trimmed;
+  }
+  return null;
+}
+
+/**
+ * Determine the preferred role for the reply badge.
+ *
+ * @param {?Object} message Message payload.
+ * @param {?Object} node Node metadata.
+ * @returns {?string} Role candidate.
+ */
+function deriveRoleCandidate(message, node) {
+  const candidates = [
+    node?.role,
+    message?.node?.role,
+  ];
+  for (const candidate of candidates) {
+    const trimmed = toTrimmedString(candidate);
+    if (trimmed) return trimmed;
+  }
+  return null;
+}
+
+/**
+ * Render the reply prefix for a message when the parent is known.
+ *
+ * @param {{
+ *   message: Object,
+ *   messagesById: Map<string, Object>,
+ *   nodesById: Map<string, Object>,
+ *   renderShortHtml: Function,
+ *   escapeHtml: Function
+ * }} params Rendering dependencies.
+ * @returns {string} HTML snippet or empty string when unavailable.
+ */
+export function resolveReplyPrefix({
+  message,
+  messagesById,
+  nodesById,
+  renderShortHtml,
+  escapeHtml
+}) {
+  if (!message || typeof message !== 'object') {
+    return '';
+  }
+  const hasLookup = messagesById instanceof Map;
+  if (!hasLookup) {
+    return '';
+  }
+  const replyKey = normaliseMessageId(message.reply_id ?? message.replyId);
+  if (!replyKey || !messagesById.has(replyKey)) {
+    return '';
+  }
+  if (typeof renderShortHtml !== 'function' || typeof escapeHtml !== 'function') {
+    return '';
+  }
+
+  const parent = messagesById.get(replyKey);
+  const node = deriveMessageNode(parent, nodesById);
+  const shortName = deriveShortCandidate(parent, node);
+  const longName = deriveLongCandidate(parent, node);
+  const role = deriveRoleCandidate(parent, node);
+  const badgeSource = node || (parent && typeof parent === 'object' ? parent.node : null) || null;
+  const shortHtml = renderShortHtml(shortName, role, longName, badgeSource);
+  if (typeof shortHtml !== 'string' || shortHtml.length === 0) {
+    return '';
+  }
+  const label = escapeHtml('in reply to');
+  return `<span class="chat-entry-reply">[${label} ${shortHtml}]</span>`;
+}
+
+/**
+ * Normalise an emoji candidate into a trimmed string.
+ *
+ * @param {*} value Emoji candidate.
+ * @returns {?string} Emoji string when valid.
+ */
+function normaliseEmojiValue(value) {
+  if (value == null) return null;
+  if (typeof value === 'string') {
+    const trimmed = value.trim();
+    return trimmed.length > 0 ? trimmed : null;
+  }
+  if (typeof value === 'number') {
+    if (!Number.isFinite(value)) return null;
+    return String(value);
+  }
+  const str = String(value).trim();
+  return str.length > 0 ? str : null;
+}
+
+/**
+ * Build the rendered message body containing text and optional emoji.
+ *
+ * @param {{
+ *   message: Object,
+ *   escapeHtml: Function,
+ *   renderEmojiHtml: Function
+ * }} params Rendering dependencies.
+ * @returns {string} HTML snippet describing the message body.
+ */
+export function buildMessageBody({ message, escapeHtml, renderEmojiHtml }) {
+  if (typeof escapeHtml !== 'function') {
+    throw new TypeError('escapeHtml must be a function');
+  }
+  if (typeof renderEmojiHtml !== 'function') {
+    throw new TypeError('renderEmojiHtml must be a function');
+  }
+  if (!message || typeof message !== 'object') {
+    return '';
+  }
+
+  const segments = [];
+  if (message.text != null) {
+    const textString = String(message.text);
+    if (textString.length > 0) {
+      segments.push(escapeHtml(textString));
+    }
+  }
+  const emoji = normaliseEmojiValue(message.emoji);
+  if (emoji) {
+    segments.push(renderEmojiHtml(emoji));
+  }
+
+  if (segments.length === 0) {
+    return '';
+  }
+  return segments.join(' ');
+}

web/public/assets/js/app/short-info-telemetry.js

@@ -0,0 +1,421 @@
+/*
+ * Copyright (C) 2025 l5yth
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Determine whether ``value`` can be treated as a finite number.
+ *
+ * @param {*} value Candidate numeric value.
+ * @returns {boolean} ``true`` when the value parses to a finite number.
+ */
+function isFiniteNumber(value) {
+  if (value == null || value === '') return false;
+  const number = typeof value === 'number' ? value : Number(value);
+  return Number.isFinite(number);
+}
+
+/**
+ * Retrieve the first defined property from ``container`` using ``keys``.
+ *
+ * @param {Object} container Object inspected for values.
+ * @param {Array<string>} keys Candidate property names.
+ * @returns {*} First non-nullish value discovered.
+ */
+function pickFirstValue(container, keys) {
+  if (!container || typeof container !== 'object') {
+    return undefined;
+  }
+  for (const key of keys) {
+    if (Object.prototype.hasOwnProperty.call(container, key)) {
+      const candidate = container[key];
+      if (candidate != null && (candidate !== '' || candidate === 0)) {
+        return candidate;
+      }
+    }
+  }
+  return undefined;
+}
+
+/**
+ * Format arbitrary telemetry values using a numeric suffix.
+ *
+ * @param {*} value Raw value to format.
+ * @param {string} suffix Unit suffix appended when formatting succeeds.
+ * @returns {string} Formatted value or an empty string for invalid input.
+ */
+export function fmtAlt(value, suffix) {
+  if (!isFiniteNumber(value) && !(value === 0 || value === '0')) {
+    return '';
+  }
+  return `${Number(value)}${suffix}`;
+}
+
+/**
+ * Format utilisation metrics as percentages.
+ *
+ * @param {*} value Raw utilisation value.
+ * @param {number} [decimals=3] Decimal precision applied to the percentage.
+ * @returns {string} Formatted percentage string.
+ */
+export function fmtTx(value, decimals = 3) {
+  if (!isFiniteNumber(value)) return '';
+  const num = Number(value);
+  return `${num.toFixed(decimals)}%`;
+}
+
+/**
+ * Format temperature telemetry in degrees Celsius.
+ *
+ * @param {*} value Raw temperature reading.
+ * @returns {string} Formatted temperature string.
+ */
+export function fmtTemperature(value) {
+  if (!isFiniteNumber(value)) return '';
+  const num = Number(value);
+  return `${num.toFixed(1)}°C`;
+}
+
+/**
+ * Format relative humidity telemetry as a percentage.
+ *
+ * @param {*} value Raw humidity reading.
+ * @returns {string} Formatted humidity string.
+ */
+export function fmtHumidity(value) {
+  if (!isFiniteNumber(value)) return '';
+  const num = Number(value);
+  return `${num.toFixed(1)}%`;
+}
+
+/**
+ * Format barometric pressure telemetry in hectopascals.
+ *
+ * @param {*} value Raw pressure value.
+ * @returns {string} Formatted pressure string.
+ */
+export function fmtPressure(value) {
+  if (!isFiniteNumber(value)) return '';
+  const num = Number(value);
+  return `${num.toFixed(1)} hPa`;
+}
+
+/**
+ * Format current telemetry, automatically scaling to milliamperes when
+ * appropriate.
+ *
+ * @param {*} value Raw current reading expressed in amperes.
+ * @returns {string} Formatted current string.
+ */
+export function fmtCurrent(value) {
+  if (!isFiniteNumber(value)) return '';
+  const num = Number(value);
+  if (Math.abs(num) < 1) {
+    return `${(num * 1000).toFixed(1)} mA`;
+  }
+  return `${num.toFixed(2)} A`;
+}
+
+/**
+ * Format gas resistance telemetry using a human readable Ohm prefix.
+ *
+ * @param {*} value Raw resistance value expressed in Ohms.
+ * @returns {string} Formatted resistance string.
+ */
+export function fmtGasResistance(value) {
+  if (!isFiniteNumber(value)) return '';
+  const num = Number(value);
+  const absVal = Math.abs(num);
+  if (absVal >= 1_000_000) {
+    return `${(num / 1_000_000).toFixed(2)} MΩ`;
+  }
+  if (absVal >= 1_000) {
+    return `${(num / 1_000).toFixed(2)} kΩ`;
+  }
+  return `${num.toFixed(2)} Ω`;
+}
+
+/**
+ * Format generic distance telemetry in metres.
+ *
+ * @param {*} value Raw distance value.
+ * @returns {string} Formatted distance string.
+ */
+export function fmtDistance(value) {
+  if (!isFiniteNumber(value)) return '';
+  const num = Number(value);
+  return `${num.toFixed(2)} m`;
+}
+
+/**
+ * Format optical telemetry in lux.
+ *
+ * @param {*} value Raw lux reading.
+ * @returns {string} Formatted lux string.
+ */
+export function fmtLux(value) {
+  if (!isFiniteNumber(value)) return '';
+  const num = Number(value);
+  return `${num.toFixed(1)} lx`;
+}
+
+/**
+ * Format wind direction telemetry in degrees.
+ *
+ * @param {*} value Raw wind direction reading.
+ * @returns {string} Formatted wind direction string.
+ */
+export function fmtWindDirection(value) {
+  if (!isFiniteNumber(value)) return '';
+  const num = Number(value);
+  return `${Math.round(num)}°`;
+}
+
+/**
+ * Format wind speed telemetry in metres per second.
+ *
+ * @param {*} value Raw wind speed reading.
+ * @returns {string} Formatted wind speed string.
+ */
+export function fmtWindSpeed(value) {
+  if (!isFiniteNumber(value)) return '';
+  const num = Number(value);
+  return `${num.toFixed(1)} m/s`;
+}
+
+/**
+ * Format weight telemetry in kilograms.
+ *
+ * @param {*} value Raw weight value.
+ * @returns {string} Formatted weight string.
+ */
+export function fmtWeight(value) {
+  if (!isFiniteNumber(value)) return '';
+  const num = Number(value);
+  return `${num.toFixed(2)} kg`;
+}
+
+/**
+ * Format radiation telemetry using microsieverts per hour.
+ *
+ * @param {*} value Raw radiation value.
+ * @returns {string} Formatted radiation string.
+ */
+export function fmtRadiation(value) {
+  if (!isFiniteNumber(value)) return '';
+  const num = Number(value);
+  return `${num.toFixed(2)} µSv/h`;
+}
+
+/**
+ * Format rainfall telemetry using millimetres.
+ *
+ * @param {*} value Raw rainfall accumulation value.
+ * @returns {string} Formatted rainfall string.
+ */
+export function fmtRainfall(value) {
+  if (!isFiniteNumber(value)) return '';
+  const num = Number(value);
+  return `${num.toFixed(2)} mm`;
+}
+
+/**
+ * Format soil moisture telemetry. The metrics are typically raw sensor values
+ * without defined units, therefore the raw integer is surfaced unchanged.
+ *
+ * @param {*} value Raw soil moisture reading.
+ * @returns {string} Soil moisture string.
+ */
+export function fmtSoilMoisture(value) {
+  if (!isFiniteNumber(value)) return '';
+  const num = Number(value);
+  return `${Math.round(num)}`;
+}
+
+/**
+ * Format soil temperature telemetry in degrees Celsius.
+ *
+ * @param {*} value Raw soil temperature reading.
+ * @returns {string} Formatted soil temperature string.
+ */
+export function fmtSoilTemperature(value) {
+  return fmtTemperature(value);
+}
+
+/**
+ * Format indoor air quality index values.
+ *
+ * @param {*} value Raw IAQ reading.
+ * @returns {string} IAQ string.
+ */
+export function fmtIaq(value) {
+  if (!isFiniteNumber(value)) return '';
+  const num = Number(value);
+  return `${Math.round(num)}`;
+}
+
+/**
+ * Telemetry descriptors consumed by the short-info overlay.
+ *
+ * Each descriptor includes a canonical key, display label, candidate source
+ * property names, and a formatter that converts numeric values into a human
+ * readable string.
+ */
+export const TELEMETRY_FIELDS = [
+  { key: 'battery', label: 'Battery', sources: ['battery', 'battery_level', 'batteryLevel'], formatter: value => fmtAlt(value, '%') },
+  { key: 'voltage', label: 'Voltage', sources: ['voltage'], formatter: value => fmtAlt(value, 'V') },
+  { key: 'current', label: 'Current', sources: ['current'], formatter: fmtCurrent },
+  { key: 'uptime', label: 'Uptime', sources: ['uptime', 'uptime_seconds', 'uptimeSeconds'], formatter: (value, utils) => (typeof utils.formatUptime === 'function' ? utils.formatUptime(value) : '') },
+  {
+    key: 'channel',
+    label: 'Channel Util',
+    sources: ['channel_utilization', 'channelUtilization', 'channel'],
+    formatter: value => fmtTx(value),
+  },
+  {
+    key: 'airUtil',
+    label: 'Air Util Tx',
+    sources: ['air_util_tx', 'airUtilTx', 'airUtil'],
+    formatter: value => fmtTx(value),
+  },
+  { key: 'temperature', label: 'Temperature', sources: ['temperature', 'temp'], formatter: fmtTemperature },
+  { key: 'humidity', label: 'Humidity', sources: ['humidity', 'relative_humidity', 'relativeHumidity'], formatter: fmtHumidity },
+  { key: 'pressure', label: 'Pressure', sources: ['pressure', 'barometric_pressure', 'barometricPressure'], formatter: fmtPressure },
+  { key: 'gasResistance', label: 'Gas Resistance', sources: ['gas_resistance', 'gasResistance'], formatter: fmtGasResistance },
+  { key: 'iaq', label: 'IAQ', sources: ['iaq'], formatter: fmtIaq },
+  { key: 'distance', label: 'Distance', sources: ['distance'], formatter: fmtDistance },
+  { key: 'lux', label: 'Lux', sources: ['lux'], formatter: fmtLux },
+  { key: 'whiteLux', label: 'White Lux', sources: ['white_lux', 'whiteLux'], formatter: fmtLux },
+  { key: 'irLux', label: 'IR Lux', sources: ['ir_lux', 'irLux'], formatter: fmtLux },
+  { key: 'uvLux', label: 'UV Lux', sources: ['uv_lux', 'uvLux'], formatter: fmtLux },
+  { key: 'windDirection', label: 'Wind Direction', sources: ['wind_direction', 'windDirection'], formatter: fmtWindDirection },
+  { key: 'windSpeed', label: 'Wind Speed', sources: ['wind_speed', 'windSpeed', 'windSpeedMps'], formatter: fmtWindSpeed },
+  { key: 'windGust', label: 'Wind Gust', sources: ['wind_gust', 'windGust'], formatter: fmtWindSpeed },
+  { key: 'windLull', label: 'Wind Lull', sources: ['wind_lull', 'windLull'], formatter: fmtWindSpeed },
+  { key: 'weight', label: 'Weight', sources: ['weight'], formatter: fmtWeight },
+  { key: 'radiation', label: 'Radiation', sources: ['radiation', 'radiationLevel'], formatter: fmtRadiation },
+  { key: 'rainfall1h', label: 'Rainfall 1h', sources: ['rainfall_1h', 'rainfall1h', 'rainfall1H'], formatter: fmtRainfall },
+  { key: 'rainfall24h', label: 'Rainfall 24h', sources: ['rainfall_24h', 'rainfall24h', 'rainfall24H'], formatter: fmtRainfall },
+  { key: 'soilMoisture', label: 'Soil Moisture', sources: ['soil_moisture', 'soilMoisture'], formatter: fmtSoilMoisture },
+  { key: 'soilTemperature', label: 'Soil Temperature', sources: ['soil_temperature', 'soilTemperature'], formatter: fmtSoilTemperature },
+];
+
+/**
+ * Collect telemetry metrics from arbitrary node payloads.
+ *
+ * The function inspects common top-level, device metric, and environment
+ * metric collections in order to surface numeric telemetry values.
+ *
+ * @param {*} source Node payload that may contain telemetry.
+ * @returns {Object} Object containing numeric telemetry keyed by descriptor.
+ */
+export function collectTelemetryMetrics(source) {
+  const metrics = {};
+  if (!source || typeof source !== 'object') {
+    return metrics;
+  }
+
+  const potentialContainers = [
+    source.telemetry,
+    source.device_metrics,
+    source.deviceMetrics,
+    source.environment_metrics,
+    source.environmentMetrics,
+    source.raw && typeof source.raw === 'object' ? source.raw.device_metrics : null,
+    source.raw && typeof source.raw === 'object' ? source.raw.deviceMetrics : null,
+    source,
+  ];
+
+  const containers = [];
+  for (const container of potentialContainers) {
+    if (!container || typeof container !== 'object') {
+      continue;
+    }
+    if (!containers.includes(container)) {
+      containers.push(container);
+    }
+  }
+
+  for (const field of TELEMETRY_FIELDS) {
+    const keys = Array.isArray(field.sources) && field.sources.length > 0
+      ? field.sources
+      : [field.key];
+    for (const container of containers) {
+      const raw = pickFirstValue(container, keys);
+      if (!isFiniteNumber(raw) && !(raw === 0 || raw === '0')) {
+        continue;
+      }
+      const num = Number(raw);
+      if (Number.isFinite(num)) {
+        metrics[field.key] = num;
+        break;
+      }
+    }
+  }
+  return metrics;
+}
+
+/**
+ * Build display entries for telemetry values suitable for short-info overlays.
+ *
+ * @param {Object} telemetry Telemetry metrics keyed by descriptor ``key``.
+ * @param {{formatUptime?: Function}} [utils] Optional formatter overrides.
+ * @returns {Array<{label: string, value: string}>} Renderable telemetry entries.
+ */
+export function buildTelemetryDisplayEntries(telemetry, utils = {}) {
+  const entries = [];
+  if (!telemetry || typeof telemetry !== 'object') {
+    return entries;
+  }
+  for (const field of TELEMETRY_FIELDS) {
+    if (!Object.prototype.hasOwnProperty.call(telemetry, field.key)) {
+      continue;
+    }
+    const value = telemetry[field.key];
+    if (value == null) {
+      continue;
+    }
+    const formatted = typeof field.formatter === 'function'
+      ? field.formatter(value, utils)
+      : String(value);
+    if (formatted == null || formatted === '') {
+      continue;
+    }
+    entries.push({ label: field.label, value: formatted });
+  }
+  return entries;
+}
+
+export default {
+  TELEMETRY_FIELDS,
+  collectTelemetryMetrics,
+  buildTelemetryDisplayEntries,
+  fmtAlt,
+  fmtTx,
+  fmtTemperature,
+  fmtHumidity,
+  fmtPressure,
+  fmtCurrent,
+  fmtGasResistance,
+  fmtDistance,
+  fmtLux,
+  fmtWindDirection,
+  fmtWindSpeed,
+  fmtWeight,
+  fmtRadiation,
+  fmtRainfall,
+  fmtSoilMoisture,
+  fmtSoilTemperature,
+  fmtIaq,
+};

web/public/assets/styles/base.css

@@ -131,7 +131,15 @@ body {
 }
 
 h1 {
-  margin: 0 0 8px;
+  margin: 0;
+}
+
+.site-header {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  gap: 12px;
+  margin-bottom: 8px;
 }
 
 .site-title {
@@ -152,6 +160,63 @@ h1 {
   margin-bottom: 12px;
 }
 
+.instance-selector {
+  display: flex;
+  align-items: center;
+}
+
+.instance-select {
+  appearance: none;
+  -webkit-appearance: none;
+  -moz-appearance: none;
+  background-color: var(--input-bg);
+  color: var(--input-fg);
+  border: 1px solid var(--input-border);
+  border-radius: 8px;
+  padding: 6px 32px 6px 12px;
+  font-size: 14px;
+  line-height: 1.4;
+  min-width: 220px;
+  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%),
+    linear-gradient(135deg, var(--muted) 50%, transparent 50%);
+  background-position: calc(100% - 18px) calc(50% - 4px), calc(100% - 12px) calc(50% - 4px);
+  background-size: 6px 6px, 6px 6px;
+  background-repeat: no-repeat;
+}
+
+.instance-select:focus {
+  outline: 2px solid var(--accent);
+  outline-offset: 2px;
+}
+
+.visually-hidden {
+  position: absolute;
+  width: 1px;
+  height: 1px;
+  padding: 0;
+  margin: -1px;
+  overflow: hidden;
+  clip: rect(0, 0, 0, 0);
+  white-space: nowrap;
+  border: 0;
+}
+
+@media (max-width: 900px) {
+  .site-header {
+    flex-direction: column;
+    align-items: flex-start;
+  }
+
+  .instance-selector,
+  .instance-select {
+    width: 100%;
+  }
+
+  .instance-select {
+    min-width: 0;
+  }
+}
+
 .pill {
   display: inline-block;
   padding: 2px 8px;
@@ -405,9 +470,58 @@ th {
   height: 60vh;
   border: 1px solid #ddd;
   border-radius: 8px;
-  overflow-y: auto;
-  padding: 6px;
+  display: flex;
+  flex-direction: column;
+  overflow: hidden;
   font-size: 12px;
+  background: var(--bg2);
+}
+
+.chat-tablist {
+  display: flex;
+  gap: 4px;
+  padding: 6px 6px 0;
+  border-bottom: 1px solid var(--line);
+}
+
+.chat-tab {
+  flex: 1;
+  border: none;
+  background: transparent;
+  color: inherit;
+  padding: 6px 8px;
+  border-radius: 6px 6px 0 0;
+  cursor: pointer;
+  font-size: 12px;
+  transition: background-color 120ms ease, color 120ms ease;
+}
+
+.chat-tab:is(:focus-visible, :hover) {
+  background: rgba(0, 0, 0, 0.06);
+}
+
+.chat-tab.is-active {
+  background: var(--bg2);
+  color: var(--accent);
+  border-bottom: 2px solid var(--accent);
+}
+
+.chat-tabpanels {
+  flex: 1;
+  display: flex;
+  min-height: 0;
+}
+
+.chat-tabpanel {
+  flex: 1;
+  padding: 6px;
+  overflow-y: auto;
+}
+
+.chat-empty {
+  margin: 12px 0;
+  color: var(--muted);
+  font-style: italic;
 }
 
 .chat-entry-node {
@@ -415,6 +529,16 @@ th {
   color: #555;
 }
 
+.chat-entry-copy {
+  font-style: normal;
+}
+
+.chat-entry-reply {
+  color: var(--muted);
+  font-style: italic;
+  margin-right: 4px;
+}
+
 .chat-entry-msg {
   font-family: ui-monospace, Menlo, Consolas, monospace;
 }
@@ -565,7 +689,7 @@ body.dark .filter-clear:hover {
   outline-offset: 2px;
 }
 
-button {
+button:not(.chat-tab):not(.sort-button) {
   padding: 6px 10px;
   border: 1px solid #ccc;
   background: #fff;
@@ -584,7 +708,7 @@ button {
   line-height: 1;
 }
 
-button:hover {
+button:not(.chat-tab):not(.sort-button):hover {
   background: #f6f6f6;
 }
 
@@ -1036,17 +1160,41 @@ body.dark #chat {
   color: #eee;
 }
 
+body.dark .chat-tablist {
+  border-bottom-color: rgba(255, 255, 255, 0.18);
+}
+
+body.dark .chat-tab {
+  color: #ddd;
+  background: transparent;
+  border-color: transparent;
+}
+
+body.dark .chat-tab:is(:focus-visible, :hover) {
+  background: rgba(255, 255, 255, 0.1);
+}
+
+body.dark .chat-tab.is-active {
+  background: #222;
+  color: var(--accent);
+  border-bottom-color: var(--accent);
+}
+
+body.dark .chat-empty {
+  color: #888;
+}
+
 body.dark th {
   background: #222;
 }
 
-body.dark button {
+body.dark button:not(.chat-tab):not(.sort-button) {
   background: #333;
   border-color: #444;
   color: #eee;
 }
 
-body.dark button:hover {
+body.dark button:not(.chat-tab):not(.sort-button):hover {
   background: #444;
 }
 
@@ -1115,6 +1263,10 @@ body.dark .chat-entry-msg {
   color: #bbb;
 }
 
+body.dark .chat-entry-reply {
+  color: #999;
+}
+
 body.dark .short-name {
   color: #555;
 }

web/scripts/export-coverage.js

@@ -15,10 +15,25 @@
 import { promises as fs } from 'node:fs';
 import path from 'node:path';
 
-const coverageDir = 'coverage';
-const reportsDir = 'reports';
-const outputPath = path.join(reportsDir, 'javascript-coverage.json');
+import istanbulLibCoverage from 'istanbul-lib-coverage';
+import istanbulLibReport from 'istanbul-lib-report';
+import istanbulReports from 'istanbul-reports';
+import v8toIstanbul from 'v8-to-istanbul';
 
+const { createCoverageMap } = istanbulLibCoverage;
+const { createContext } = istanbulLibReport;
+
+const coverageDir = path.resolve('coverage');
+const reportsDir = path.resolve('reports');
+const jsonOutputName = 'javascript-coverage.json';
+const lcovOutputName = 'javascript-coverage.lcov';
+const projectRoot = process.cwd();
+
+/**
+ * Ensure the reports directory exists so that coverage artefacts can be written.
+ *
+ * @returns {Promise<void>} A promise that resolves when the directory is available.
+ */
 async function ensureReportsDir() {
   try {
     await fs.mkdir(reportsDir, { recursive: true });
@@ -28,32 +43,150 @@ async function ensureReportsDir() {
   }
 }
 
-async function copyLatestCoverage() {
+/**
+ * Read the coverage directory and return a deterministically ordered list of JSON files.
+ *
+ * @returns {Promise<string[]>} The absolute paths of available coverage JSON artefacts.
+ */
+async function listCoverageFiles() {
   let entries;
   try {
     entries = await fs.readdir(coverageDir);
   } catch (error) {
     if (error.code === 'ENOENT') {
       console.warn('Coverage directory not found; skipping export.');
-      return;
+      return [];
     }
     throw error;
   }
 
-  const coverageFiles = entries.filter(name => name.endsWith('.json'));
+  const coverageFiles = entries
+    .filter(name => name.endsWith('.json'))
+    .map(name => path.join(coverageDir, name))
+    .sort();
+
   if (!coverageFiles.length) {
     console.warn('No coverage files generated; skipping export.');
-    return;
+    return [];
   }
 
-  // Sort to pick the most recent entry deterministically.
-  coverageFiles.sort();
-  const latest = coverageFiles[coverageFiles.length - 1];
-  const source = path.join(coverageDir, latest);
+  return coverageFiles;
+}
 
-  await fs.copyFile(source, outputPath);
-  console.log(`Copied coverage report to ${outputPath}`);
+/**
+ * Convert a V8 coverage URL to a project-local filesystem path.
+ *
+ * @param {string | undefined} url The coverage URL emitted by V8.
+ * @returns {string | null} A normalised absolute path, or null when the URL should be ignored.
+ */
+function normaliseFileUrl(url) {
+  if (!url || url.startsWith('node:')) {
+    return null;
+  }
+
+  if (!url.startsWith('file://')) {
+    return null;
+  }
+
+  let filePath;
+  try {
+    filePath = decodeURIComponent(new URL(url).pathname);
+  } catch {
+    return null;
+  }
+
+  if (!filePath.startsWith(projectRoot)) {
+    return null;
+  }
+
+  if (filePath.includes('node_modules')) {
+    return null;
+  }
+
+  return filePath;
+}
+
+/**
+ * Transform the raw V8 coverage reports into an Istanbul coverage map.
+ *
+ * @param {string[]} coverageFiles A list of coverage artefacts to consume.
+ * @returns {Promise<import('istanbul-lib-coverage').CoverageMap>} The aggregated coverage map.
+ */
+async function buildCoverageMap(coverageFiles) {
+  const coverageMap = createCoverageMap({});
+
+  for (const file of coverageFiles) {
+    const raw = await fs.readFile(file, 'utf8');
+    const parsed = JSON.parse(raw);
+    const entries = Array.isArray(parsed.result) ? parsed.result : [];
+
+    for (const entry of entries) {
+      const { url, functions } = entry;
+      const filePath = normaliseFileUrl(url);
+      if (!filePath) {
+        continue;
+      }
+
+      try {
+        const converter = v8toIstanbul(filePath, 0, {
+          source: await fs.readFile(filePath, 'utf8'),
+        });
+        await converter.load();
+        converter.applyCoverage(functions);
+        const fileCoverages = converter.toIstanbul();
+        for (const coverage of Object.values(fileCoverages)) {
+          if (coverage.path) {
+            const relativePath = path.relative(projectRoot, coverage.path);
+            coverage.path = relativePath || coverage.path;
+          }
+          try {
+            const existingCoverage = coverageMap.fileCoverageFor(coverage.path);
+            existingCoverage.merge(coverage);
+          } catch (error) {
+            if (error && typeof error.message === 'string' && error.message.includes('No file coverage')) {
+              coverageMap.addFileCoverage(coverage);
+            } else {
+              throw error;
+            }
+          }
+        }
+      } catch (error) {
+        console.warn(`Failed to translate coverage for ${filePath}:`, error);
+      }
+    }
+  }
+
+  return coverageMap;
+}
+
+/**
+ * Persist the Istanbul coverage map as JSON and LCOV artefacts for downstream tooling.
+ *
+ * @param {import('istanbul-lib-coverage').CoverageMap} coverageMap The populated coverage map.
+ * @returns {Promise<void>} A promise that resolves when the outputs are written.
+ */
+async function writeCoverageOutputs(coverageMap) {
+  const jsonOutputPath = path.join(reportsDir, jsonOutputName);
+  const lcovOutputPath = path.join(reportsDir, lcovOutputName);
+
+  await fs.writeFile(jsonOutputPath, `${JSON.stringify(coverageMap.toJSON(), null, 2)}\n`);
+
+  const context = createContext({ dir: reportsDir, coverageMap });
+  istanbulReports.create('lcovonly', { file: lcovOutputName }).execute(context);
+
+  console.log(`Wrote coverage reports to ${jsonOutputPath} and ${lcovOutputPath}`);
 }
 
 await ensureReportsDir();
-await copyLatestCoverage();
+const coverageFiles = await listCoverageFiles();
+if (!coverageFiles.length) {
+  process.exit(0);
+}
+
+const coverageMap = await buildCoverageMap(coverageFiles);
+if (!coverageMap.files().length) {
+  console.warn('No project coverage entries were recognised; skipping export.');
+  process.exit(0);
+}
+
+await writeCoverageOutputs(coverageMap);

web/spec/app_spec.rb

@@ -33,12 +33,38 @@ RSpec.describe "Potato Mesh Sinatra app" do
   end
 
   describe ".resolve_port" do
-    it "always returns the baked-in default port" do
-      expect(application_class.resolve_port).to eq(PotatoMesh::Application::DEFAULT_PORT)
-      ENV["PORT"] = "51515"
-      expect(application_class.resolve_port).to eq(PotatoMesh::Application::DEFAULT_PORT)
-    ensure
+    around do |example|
+      original_port = ENV["PORT"]
+      begin
+        example.run
+      ensure
+        if original_port
+          ENV["PORT"] = original_port
+        else
+          ENV.delete("PORT")
+        end
+      end
+    end
+
+    it "returns the baked-in default port when PORT is not provided" do
       ENV.delete("PORT")
+      expect(application_class.resolve_port).to eq(PotatoMesh::Application::DEFAULT_PORT)
+    end
+
+    it "honours a valid PORT override" do
+      ENV["PORT"] = "51515"
+      expect(application_class.resolve_port).to eq(51_515)
+    end
+
+    it "falls back to the default for invalid PORT values" do
+      ENV["PORT"] = "abc"
+      expect(application_class.resolve_port).to eq(PotatoMesh::Application::DEFAULT_PORT)
+
+      ENV["PORT"] = "70000"
+      expect(application_class.resolve_port).to eq(PotatoMesh::Application::DEFAULT_PORT)
+
+      ENV["PORT"] = "0"
+      expect(application_class.resolve_port).to eq(PotatoMesh::Application::DEFAULT_PORT)
     end
   end
 
@@ -280,6 +306,40 @@ RSpec.describe "Potato Mesh Sinatra app" do
       expect(result).to be(dummy_thread)
       expect(app.settings.federation_thread).to be(dummy_thread)
     end
+
+    context "when federation is disabled" do
+      around do |example|
+        original = ENV["FEDERATION"]
+        begin
+          ENV["FEDERATION"] = "0"
+          example.run
+        ensure
+          if original.nil?
+            ENV.delete("FEDERATION")
+          else
+            ENV["FEDERATION"] = original
+          end
+        end
+      end
+
+      it "does not start the initial announcement thread" do
+        expect(Thread).not_to receive(:new)
+
+        result = app.start_initial_federation_announcement!
+
+        expect(result).to be_nil
+        expect(app.settings.respond_to?(:initial_federation_thread) ? app.settings.initial_federation_thread : nil).to be_nil
+      end
+
+      it "does not start the recurring announcer thread" do
+        expect(Thread).not_to receive(:new)
+
+        result = app.start_federation_announcer!
+
+        expect(result).to be_nil
+        expect(app.settings.federation_thread).to be_nil
+      end
+    end
   end
 
   before do
@@ -753,6 +813,52 @@ RSpec.describe "Potato Mesh Sinatra app" do
       end
     end
 
+    describe ".self_instance_domain" do
+      around do |example|
+        original_app_env = ENV["APP_ENV"]
+        original_rack_env = ENV["RACK_ENV"]
+        begin
+          example.run
+        ensure
+          if original_app_env
+            ENV["APP_ENV"] = original_app_env
+          else
+            ENV.delete("APP_ENV")
+          end
+
+          if original_rack_env
+            ENV["RACK_ENV"] = original_rack_env
+          else
+            ENV.delete("RACK_ENV")
+          end
+        end
+      end
+
+      it "returns the sanitized domain when configuration is present" do
+        ENV.delete("APP_ENV")
+        stub_const("PotatoMesh::Application::INSTANCE_DOMAIN", " Example.Org ") do
+          expect(application_class.self_instance_domain).to eq("example.org")
+        end
+      end
+
+      it "returns nil when the domain is unavailable outside production" do
+        ENV["APP_ENV"] = "development"
+        stub_const("PotatoMesh::Application::INSTANCE_DOMAIN", nil) do
+          expect(application_class.self_instance_domain).to be_nil
+        end
+      end
+
+      it "raises when the domain is unavailable in production" do
+        ENV["APP_ENV"] = "production"
+        stub_const("PotatoMesh::Application::INSTANCE_DOMAIN", nil) do
+          expect { application_class.self_instance_domain }.to raise_error(
+            RuntimeError,
+            "INSTANCE_DOMAIN could not be determined",
+          )
+        end
+      end
+    end
+
     describe ".self_instance_registration_decision" do
       let(:domain) { "spec.mesh.test" }
 
@@ -858,6 +964,34 @@ RSpec.describe "Potato Mesh Sinatra app" do
 
       expect(targets).to eq(["potatomesh.net"])
     end
+
+    it "ignores remote instances that have not updated within a week" do
+      with_db do |db|
+        db.execute("DELETE FROM instances")
+        stale_time = (Time.now.to_i - PotatoMesh::Config.week_seconds - 60)
+        db.execute(
+          "INSERT INTO instances (id, domain, pubkey, name, version, channel, frequency, latitude, longitude, last_update_time, is_private, signature) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
+          [
+            "stale-id",
+            "stale.mesh",
+            "pubkey",
+            "Stale",
+            "1.0.0",
+            nil,
+            nil,
+            nil,
+            nil,
+            stale_time,
+            0,
+            "signature",
+          ],
+        )
+      end
+
+      targets = application_class.federation_target_domains("self.mesh")
+
+      expect(targets).to eq(["potatomesh.net"])
+    end
   end
 
   describe ".latest_node_update_timestamp" do
@@ -1000,6 +1134,29 @@ RSpec.describe "Potato Mesh Sinatra app" do
       expect(last_response.body).to include('class="footer-content"')
     end
 
+    it "renders the federation instance selector when federation is enabled" do
+      get "/"
+
+      expect(last_response.body).to include('id="instanceSelect"')
+      expect(last_response.body).to include("Select region ...")
+    end
+
+    it "omits the instance selector when private mode is active" do
+      allow(PotatoMesh::Config).to receive(:private_mode_enabled?).and_return(true)
+
+      get "/"
+
+      expect(last_response.body).not_to include('id="instanceSelect"')
+    end
+
+    it "omits the instance selector when federation is disabled" do
+      allow(PotatoMesh::Config).to receive(:federation_enabled?).and_return(false)
+
+      get "/"
+
+      expect(last_response.body).not_to include('id="instanceSelect"')
+    end
+
     it "includes SEO metadata from configuration" do
       allow(PotatoMesh::Config).to receive(:site_name).and_return("Spec Mesh Title")
       allow(PotatoMesh::Config).to receive(:channel).and_return("#SpecChannel")
@@ -1161,7 +1318,7 @@ RSpec.describe "Potato Mesh Sinatra app" do
     end
 
     before do
-      allow_any_instance_of(Sinatra::Application).to receive(:fetch_instance_json) do |_instance, host, path|
+      fetch_stub = lambda do |host, path|
         case path
         when "/.well-known/potato-mesh"
           [well_known_document, URI("https://#{host}#{path}")]
@@ -1171,6 +1328,29 @@ RSpec.describe "Potato Mesh Sinatra app" do
           [nil, []]
         end
       end
+
+      allow_any_instance_of(Sinatra::Application).to receive(:fetch_instance_json) do |_instance, host, path|
+        fetch_stub.call(host, path)
+      end
+
+      allow(PotatoMesh::Application).to receive(:fetch_instance_json) do |host, path|
+        fetch_stub.call(host, path)
+      end
+
+      allow_any_instance_of(Sinatra::Application).to receive(:enqueue_federation_crawl) do |instance, domain, per_response_limit:, overall_limit:|
+        db = instance.open_database
+        begin
+          instance.ingest_known_instances_from!(
+            db,
+            domain,
+            per_response_limit: per_response_limit,
+            overall_limit: overall_limit,
+          )
+        ensure
+          db&.close
+        end
+        true
+      end
     end
 
     it "stores a federated instance when validation succeeds" do
@@ -2023,6 +2203,28 @@ RSpec.describe "Potato Mesh Sinatra app" do
         expect(domains).to eq(["duplicate.example"])
       end
     end
+
+    context "when federation is disabled" do
+      around do |example|
+        original = ENV["FEDERATION"]
+        begin
+          ENV["FEDERATION"] = "0"
+          example.run
+        ensure
+          if original.nil?
+            ENV.delete("FEDERATION")
+          else
+            ENV["FEDERATION"] = original
+          end
+        end
+      end
+
+      it "returns 404" do
+        get "/api/instances"
+
+        expect(last_response.status).to eq(404)
+      end
+    end
   end
 
   describe "POST /api/nodes" do
@@ -2302,7 +2504,8 @@ RSpec.describe "Potato Mesh Sinatra app" do
         rows = db.execute(<<~SQL)
           SELECT id, rx_time, rx_iso, from_id, to_id, channel,
                  portnum, text, snr, rssi, hop_limit,
-                 lora_freq, modem_preset, channel_name
+                 lora_freq, modem_preset, channel_name,
+                 reply_id, emoji
           FROM messages
           ORDER BY id
         SQL
@@ -2324,10 +2527,53 @@ RSpec.describe "Potato Mesh Sinatra app" do
           expect(row["lora_freq"]).to eq(expected["lora_freq"])
           expect(row["modem_preset"]).to eq(expected["modem_preset"])
           expect(row["channel_name"]).to eq(expected["channel_name"])
+          expect(row["reply_id"]).to eq(expected["reply_id"])
+          expect(row["emoji"]).to eq(expected["emoji"])
         end
       end
     end
 
+    it "persists reply metadata and emoji reactions" do
+      parent_payload = {
+        "id" => 42,
+        "rx_time" => reference_time.to_i - 10,
+        "from_id" => "!parent",
+        "channel" => 0,
+        "portnum" => "TEXT_MESSAGE_APP",
+        "text" => "source message",
+      }
+
+      reaction_payload = {
+        "id" => 108,
+        "rx_time" => reference_time.to_i,
+        "from_id" => "!reactor",
+        "channel" => 0,
+        "portnum" => "REACTION_APP",
+        "reply_id" => parent_payload["id"],
+        "emoji" => " 🔥 ",
+      }
+
+      post "/api/messages", parent_payload.to_json, auth_headers
+      expect(last_response).to be_ok
+      post "/api/messages", reaction_payload.to_json, auth_headers
+      expect(last_response).to be_ok
+
+      with_db(readonly: true) do |db|
+        db.results_as_hash = true
+        row = db.get_first_row("SELECT reply_id, emoji FROM messages WHERE id = ?", [reaction_payload["id"]])
+        expect(row["reply_id"]).to eq(parent_payload["id"])
+        expect(row["emoji"]).to eq("🔥")
+      end
+
+      get "/api/messages"
+      expect(last_response).to be_ok
+      body = JSON.parse(last_response.body)
+      reaction_row = body.find { |entry| entry["id"] == reaction_payload["id"] }
+      expect(reaction_row).not_to be_nil
+      expect(reaction_row["reply_id"]).to eq(parent_payload["id"])
+      expect(reaction_row["emoji"]).to eq("🔥")
+    end
+
     it "creates hidden nodes for unknown message senders" do
       payload = {
         "id" => 9_999,
@@ -2742,11 +2988,57 @@ RSpec.describe "Potato Mesh Sinatra app" do
           expect_same_value(first["channel_utilization"], payload[0].dig("device_metrics", "channelUtilization"))
           expect_same_value(first["air_util_tx"], payload[0].dig("device_metrics", "airUtilTx"))
           expect(first["uptime_seconds"]).to eq(payload[0].dig("device_metrics", "uptimeSeconds"))
+          expect_same_value(first["current"], payload[0]["current"])
+          expect_same_value(first["gas_resistance"], payload[0]["gas_resistance"])
+          expect_same_value(first["iaq"], payload[0]["iaq"])
+          expect_same_value(first["distance"], payload[0]["distance"])
+          expect_same_value(first["lux"], payload[0]["lux"])
+          expect_same_value(first["white_lux"], payload[0]["white_lux"])
+          expect_same_value(first["ir_lux"], payload[0]["ir_lux"])
+          expect_same_value(first["uv_lux"], payload[0]["uv_lux"])
+          expect_same_value(first["wind_direction"], payload[0]["wind_direction"])
+          expect_same_value(first["wind_speed"], payload[0]["wind_speed"])
+          expect_same_value(first["wind_gust"], payload[0]["wind_gust"])
+          expect_same_value(first["wind_lull"], payload[0]["wind_lull"])
+          expect_same_value(first["weight"], payload[0]["weight"])
+          expect_same_value(first["radiation"], payload[0]["radiation"])
+          expect_same_value(first["rainfall_1h"], payload[0]["rainfall_1h"])
+          expect_same_value(first["rainfall_24h"], payload[0]["rainfall_24h"])
+          expect_same_value(first["soil_moisture"], payload[0]["soil_moisture"])
+          expect_same_value(first["soil_temperature"], payload[0]["soil_temperature"])
 
           environment_row = rows.find { |row| row["id"] == payload[1]["id"] }
           expect(environment_row["temperature"]).to be_within(1e-6).of(payload[1].dig("environment_metrics", "temperature"))
           expect(environment_row["relative_humidity"]).to be_within(1e-6).of(payload[1].dig("environment_metrics", "relativeHumidity"))
           expect(environment_row["barometric_pressure"]).to be_within(1e-6).of(payload[1].dig("environment_metrics", "barometricPressure"))
+          expect_same_value(environment_row["gas_resistance"], payload[1].dig("environment_metrics", "gasResistance"))
+          expect_same_value(environment_row["iaq"], payload[1].dig("environment_metrics", "iaq"))
+          expect_same_value(environment_row["distance"], payload[1].dig("environment_metrics", "distance"))
+          expect_same_value(environment_row["lux"], payload[1].dig("environment_metrics", "lux"))
+          expect_same_value(environment_row["white_lux"], payload[1].dig("environment_metrics", "whiteLux"))
+          expect_same_value(environment_row["ir_lux"], payload[1].dig("environment_metrics", "irLux"))
+          expect_same_value(environment_row["uv_lux"], payload[1].dig("environment_metrics", "uvLux"))
+          expect_same_value(environment_row["wind_direction"], payload[1].dig("environment_metrics", "windDirection"))
+          expect_same_value(environment_row["wind_speed"], payload[1].dig("environment_metrics", "windSpeed"))
+          expect_same_value(environment_row["wind_gust"], payload[1].dig("environment_metrics", "windGust"))
+          expect_same_value(environment_row["wind_lull"], payload[1].dig("environment_metrics", "windLull"))
+          expect_same_value(environment_row["weight"], payload[1].dig("environment_metrics", "weight"))
+          expect_same_value(environment_row["radiation"], payload[1].dig("environment_metrics", "radiation"))
+          expect_same_value(environment_row["rainfall_1h"], payload[1].dig("environment_metrics", "rainfall1h"))
+          expect_same_value(environment_row["rainfall_24h"], payload[1].dig("environment_metrics", "rainfall24h"))
+          expect_same_value(environment_row["soil_moisture"], payload[1].dig("environment_metrics", "soilMoisture"))
+          expect_same_value(environment_row["soil_temperature"], payload[1].dig("environment_metrics", "soilTemperature"))
+
+          third_row = rows.find { |row| row["id"] == payload[2]["id"] }
+          expect_same_value(third_row["current"], payload[2].dig("device_metrics", "current"))
+          expect_same_value(third_row["distance"], payload[2].dig("environment_metrics", "distance"))
+          expect_same_value(third_row["lux"], payload[2].dig("environment_metrics", "lux"))
+          expect_same_value(third_row["wind_direction"], payload[2].dig("environment_metrics", "windDirection"))
+          expect_same_value(third_row["wind_speed"], payload[2].dig("environment_metrics", "windSpeed"))
+          expect_same_value(third_row["weight"], payload[2].dig("environment_metrics", "weight"))
+          expect_same_value(third_row["rainfall_24h"], payload[2].dig("environment_metrics", "rainfall24h"))
+          expect_same_value(third_row["soil_moisture"], payload[2].dig("environment_metrics", "soilMoisture"))
+          expect_same_value(third_row["soil_temperature"], payload[2].dig("environment_metrics", "soilTemperature"))
         end
 
         with_db(readonly: true) do |db|
@@ -2979,7 +3271,13 @@ RSpec.describe "Potato Mesh Sinatra app" do
 
       messages = JSON.parse(last_response.body)
       expect(messages).to be_an(Array)
-      expect(messages).to be_empty
+
+      encrypted_entry = messages.find { |row| row["id"] == payload["packet_id"] }
+      expect(encrypted_entry).not_to be_nil
+      expect(encrypted_entry["encrypted"]).to eq(encrypted_b64)
+      expect(encrypted_entry["text"]).to be_nil
+      expect(encrypted_entry["from_id"]).to eq(sender_id)
+      expect(encrypted_entry["to_id"]).to eq(receiver_id)
     end
 
     it "updates node last_heard for plaintext messages" do
@@ -3144,30 +3442,19 @@ RSpec.describe "Potato Mesh Sinatra app" do
         expected = expected_node_row(node)
         actual_row = actual_by_id.fetch(node["node_id"])
 
-        expect(actual_row["short_name"]).to eq(expected["short_name"])
-        expect(actual_row["long_name"]).to eq(expected["long_name"])
-        expect(actual_row["hw_model"]).to eq(expected["hw_model"])
-        expect(actual_row["role"]).to eq(expected["role"])
-        expect_same_value(actual_row["snr"], expected["snr"])
-        expect_same_value(actual_row["battery_level"], expected["battery_level"])
-        expect_same_value(actual_row["voltage"], expected["voltage"])
-        expect(actual_row["last_heard"]).to eq(expected["last_heard"])
-        expect(actual_row["first_heard"]).to eq(expected["first_heard"])
-        expect_same_value(actual_row["uptime_seconds"], expected["uptime_seconds"])
-        expect_same_value(actual_row["channel_utilization"], expected["channel_utilization"])
-        expect_same_value(actual_row["air_util_tx"], expected["air_util_tx"])
-        expect_same_value(actual_row["position_time"], expected["position_time"])
-        expect(actual_row["location_source"]).to eq(expected["location_source"])
-        expect_same_value(actual_row["precision_bits"], expected["precision_bits"])
-        expect_same_value(actual_row["latitude"], expected["latitude"])
-        expect_same_value(actual_row["longitude"], expected["longitude"])
-        expect_same_value(actual_row["altitude"], expected["altitude"])
+        expected.each do |key, value|
+          if value.nil?
+            expect(actual_row).not_to have_key(key), "expected #{key} to be omitted"
+          else
+            expect_same_value(actual_row[key], value)
+          end
+        end
 
         if expected["last_heard"]
           expected_last_seen_iso = Time.at(expected["last_heard"]).utc.iso8601
           expect(actual_row["last_seen_iso"]).to eq(expected_last_seen_iso)
         else
-          expect(actual_row["last_seen_iso"]).to be_nil
+          expect(actual_row).not_to have_key("last_seen_iso")
         end
 
         if node["position_time"]
@@ -3212,6 +3499,64 @@ RSpec.describe "Potato Mesh Sinatra app" do
       payload = JSON.parse(last_response.body)
       expect(payload["node_id"]).to eq("!fresh-node")
     end
+
+    it "omits blank values from node responses" do
+      clear_database
+      allow(Time).to receive(:now).and_return(reference_time)
+      now = reference_time.to_i
+
+      with_db do |db|
+        db.execute(
+          "INSERT INTO nodes(node_id, short_name, long_name, hw_model, role, snr, battery_level, voltage, last_heard, first_heard, uptime_seconds, channel_utilization, air_util_tx, position_time, location_source, precision_bits, latitude, longitude, altitude) VALUES(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)",
+          [
+            "!blank",
+            " ",
+            nil,
+            "",
+            nil,
+            nil,
+            nil,
+            nil,
+            now,
+            now,
+            nil,
+            nil,
+            nil,
+            nil,
+            " ",
+            nil,
+            nil,
+            nil,
+            nil,
+          ],
+        )
+      end
+
+      get "/api/nodes"
+
+      expect(last_response).to be_ok
+      nodes = JSON.parse(last_response.body)
+      expect(nodes.length).to eq(1)
+      entry = nodes.first
+      expect(entry["node_id"]).to eq("!blank")
+      %w[short_name long_name hw_model snr battery_level voltage uptime_seconds channel_utilization air_util_tx position_time location_source precision_bits latitude longitude altitude].each do |attribute|
+        expect(entry).not_to have_key(attribute), "expected #{attribute} to be omitted"
+      end
+
+      expect(entry["role"]).to eq("CLIENT")
+      expect(entry["last_heard"]).to eq(now)
+      expect(entry["first_heard"]).to eq(now)
+      expect(entry["last_seen_iso"]).to eq(Time.at(now).utc.iso8601)
+      expect(entry).not_to have_key("pos_time_iso")
+
+      get "/api/nodes/!blank"
+
+      expect(last_response).to be_ok
+      payload = JSON.parse(last_response.body)
+      expect(payload["node_id"]).to eq("!blank")
+      expect(payload).not_to have_key("short_name")
+      expect(payload).not_to have_key("hw_model")
+    end
   end
 
   describe "GET /api/messages" do
@@ -3292,6 +3637,8 @@ RSpec.describe "Potato Mesh Sinatra app" do
         expect(actual_row["lora_freq"]).to eq(expected["lora_freq"])
         expect(actual_row["modem_preset"]).to eq(expected["modem_preset"])
         expect(actual_row["channel_name"]).to eq(expected["channel_name"])
+        expect(actual_row["reply_id"]).to eq(expected["reply_id"])
+        expect(actual_row["emoji"]).to eq(expected["emoji"])
         expect(actual_row["rx_time"]).to eq(expected["rx_time"])
         expect(actual_row["rx_iso"]).to eq(expected["rx_iso"])
         expect(actual_row).not_to have_key("node")
@@ -3386,6 +3733,11 @@ RSpec.describe "Potato Mesh Sinatra app" do
       expect(last_response.status).to eq(404)
     end
 
+    it "returns 404 for HEAD /api/messages" do
+      head "/api/messages"
+      expect(last_response.status).to eq(404)
+    end
+
     it "returns 404 for POST /api/messages" do
       post "/api/messages", {}.to_json, auth_headers
       expect(last_response.status).to eq(404)
@@ -3496,6 +3848,55 @@ RSpec.describe "Potato Mesh Sinatra app" do
       filtered = JSON.parse(last_response.body)
       expect(filtered.map { |row| row["id"] }).to eq([2])
     end
+
+    it "omits blank values from position responses" do
+      clear_database
+      allow(Time).to receive(:now).and_return(reference_time)
+      now = reference_time.to_i
+
+      with_db do |db|
+        db.execute(
+          "INSERT INTO positions(id, node_id, node_num, rx_time, rx_iso, position_time, latitude, longitude, altitude, location_source, precision_bits, sats_in_view, pdop, payload_b64) VALUES(?,?,?,?,?,?,?,?,?,?,?,?,?,?)",
+          [
+            7,
+            "!pos-blank",
+            nil,
+            now,
+            " ",
+            nil,
+            nil,
+            nil,
+            nil,
+            " ",
+            nil,
+            nil,
+            nil,
+            "",
+          ],
+        )
+      end
+
+      get "/api/positions"
+
+      expect(last_response).to be_ok
+      rows = JSON.parse(last_response.body)
+      expect(rows.length).to eq(1)
+      entry = rows.first
+      expect(entry["node_id"]).to eq("!pos-blank")
+      expect(entry["rx_time"]).to eq(now)
+      expect(entry["rx_iso"]).to eq(Time.at(now).utc.iso8601)
+      %w[position_time latitude longitude altitude location_source precision_bits sats_in_view pdop payload_b64].each do |attribute|
+        expect(entry).not_to have_key(attribute), "expected #{attribute} to be omitted"
+      end
+
+      get "/api/positions/!pos-blank"
+
+      expect(last_response).to be_ok
+      filtered = JSON.parse(last_response.body)
+      expect(filtered.length).to eq(1)
+      expect(filtered.first).not_to have_key("payload_b64")
+      expect(filtered.first).not_to have_key("location_source")
+    end
   end
 
   describe "GET /api/neighbors" do
@@ -3545,6 +3946,45 @@ RSpec.describe "Potato Mesh Sinatra app" do
       expect(filtered.first["neighbor_id"]).to eq("!neighbor-new")
       expect(filtered.first["rx_time"]).to eq(fresh_rx)
     end
+
+    it "omits blank values from neighbor responses" do
+      clear_database
+      allow(Time).to receive(:now).and_return(reference_time)
+      now = reference_time.to_i
+
+      with_db do |db|
+        db.execute(
+          "INSERT INTO nodes(node_id, short_name, long_name, hw_model, role, snr, last_heard, first_heard) VALUES(?,?,?,?,?,?,?,?)",
+          ["!origin", "orig", "Origin", "TBEAM", "CLIENT", 0.0, now, now],
+        )
+        db.execute(
+          "INSERT INTO nodes(node_id, short_name, long_name, hw_model, role, snr, last_heard, first_heard) VALUES(?,?,?,?,?,?,?,?)",
+          ["!neighbor", "neig", "Neighbor", "TBEAM", "CLIENT", 0.0, now, now],
+        )
+        db.execute(
+          "INSERT INTO neighbors(node_id, neighbor_id, snr, rx_time) VALUES(?,?,?,?)",
+          ["!origin", "!neighbor", nil, now],
+        )
+      end
+
+      get "/api/neighbors"
+
+      expect(last_response).to be_ok
+      payload = JSON.parse(last_response.body)
+      expect(payload.length).to eq(1)
+      entry = payload.first
+      expect(entry["node_id"]).to eq("!origin")
+      expect(entry["neighbor_id"]).to eq("!neighbor")
+      expect(entry["rx_time"]).to eq(now)
+      expect(entry).not_to have_key("snr")
+
+      get "/api/neighbors/!origin"
+
+      expect(last_response).to be_ok
+      filtered = JSON.parse(last_response.body)
+      expect(filtered.length).to eq(1)
+      expect(filtered.first).not_to have_key("snr")
+    end
   end
 
   describe "GET /api/telemetry" do
@@ -3569,6 +4009,15 @@ RSpec.describe "Potato Mesh Sinatra app" do
       expect(first_entry["telemetry_time_iso"]).to eq(Time.at(latest["telemetry_time"]).utc.iso8601)
       expect(first_entry).not_to have_key("device_metrics")
       expect_same_value(first_entry["battery_level"], latest.dig("device_metrics", "battery_level") || latest.dig("device_metrics", "batteryLevel"))
+      expect_same_value(first_entry["current"], latest.dig("device_metrics", "current"))
+      expect_same_value(first_entry["distance"], latest.dig("environment_metrics", "distance"))
+      expect_same_value(first_entry["lux"], latest.dig("environment_metrics", "lux"))
+      expect_same_value(first_entry["wind_direction"], latest.dig("environment_metrics", "windDirection"))
+      expect_same_value(first_entry["wind_speed"], latest.dig("environment_metrics", "windSpeed"))
+      expect_same_value(first_entry["weight"], latest.dig("environment_metrics", "weight"))
+      expect_same_value(first_entry["rainfall_24h"], latest.dig("environment_metrics", "rainfall24h"))
+      expect_same_value(first_entry["soil_moisture"], latest.dig("environment_metrics", "soilMoisture"))
+      expect_same_value(first_entry["soil_temperature"], latest.dig("environment_metrics", "soilTemperature"))
 
       second_entry = data.last
       expect(second_entry["id"]).to eq(second_latest["id"])
@@ -3576,6 +4025,23 @@ RSpec.describe "Potato Mesh Sinatra app" do
       expect(second_entry["temperature"]).to be_within(1e-6).of(second_latest["environment_metrics"]["temperature"])
       expect(second_entry["relative_humidity"]).to be_within(1e-6).of(second_latest["environment_metrics"]["relativeHumidity"])
       expect(second_entry["barometric_pressure"]).to be_within(1e-6).of(second_latest["environment_metrics"]["barometricPressure"])
+      expect_same_value(second_entry["gas_resistance"], second_latest.dig("environment_metrics", "gasResistance"))
+      expect_same_value(second_entry["iaq"], second_latest.dig("environment_metrics", "iaq"))
+      expect_same_value(second_entry["distance"], second_latest.dig("environment_metrics", "distance"))
+      expect_same_value(second_entry["lux"], second_latest.dig("environment_metrics", "lux"))
+      expect_same_value(second_entry["white_lux"], second_latest.dig("environment_metrics", "whiteLux"))
+      expect_same_value(second_entry["ir_lux"], second_latest.dig("environment_metrics", "irLux"))
+      expect_same_value(second_entry["uv_lux"], second_latest.dig("environment_metrics", "uvLux"))
+      expect_same_value(second_entry["wind_direction"], second_latest.dig("environment_metrics", "windDirection"))
+      expect_same_value(second_entry["wind_speed"], second_latest.dig("environment_metrics", "windSpeed"))
+      expect_same_value(second_entry["wind_gust"], second_latest.dig("environment_metrics", "windGust"))
+      expect_same_value(second_entry["wind_lull"], second_latest.dig("environment_metrics", "windLull"))
+      expect_same_value(second_entry["weight"], second_latest.dig("environment_metrics", "weight"))
+      expect_same_value(second_entry["radiation"], second_latest.dig("environment_metrics", "radiation"))
+      expect_same_value(second_entry["rainfall_1h"], second_latest.dig("environment_metrics", "rainfall1h"))
+      expect_same_value(second_entry["rainfall_24h"], second_latest.dig("environment_metrics", "rainfall24h"))
+      expect_same_value(second_entry["soil_moisture"], second_latest.dig("environment_metrics", "soilMoisture"))
+      expect_same_value(second_entry["soil_temperature"], second_latest.dig("environment_metrics", "soilTemperature"))
     end
 
     it "excludes telemetry entries older than seven days" do
@@ -3609,5 +4075,60 @@ RSpec.describe "Potato Mesh Sinatra app" do
       filtered = JSON.parse(last_response.body)
       expect(filtered.map { |row| row["id"] }).to eq([2])
     end
+
+    it "omits blank values from telemetry responses" do
+      clear_database
+      allow(Time).to receive(:now).and_return(reference_time)
+      now = reference_time.to_i
+
+      with_db do |db|
+        db.execute(
+          "INSERT INTO telemetry(id, node_id, node_num, rx_time, rx_iso, telemetry_time, channel, portnum, hop_limit, snr, rssi, bitfield, payload_b64, battery_level, voltage, channel_utilization, air_util_tx, uptime_seconds, temperature, relative_humidity) VALUES(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)",
+          [
+            77,
+            "!tele-blank",
+            nil,
+            now,
+            " ",
+            nil,
+            nil,
+            "",
+            nil,
+            nil,
+            nil,
+            nil,
+            "",
+            nil,
+            nil,
+            nil,
+            nil,
+            nil,
+            nil,
+            nil,
+          ],
+        )
+      end
+
+      get "/api/telemetry"
+
+      expect(last_response).to be_ok
+      rows = JSON.parse(last_response.body)
+      expect(rows.length).to eq(1)
+      entry = rows.first
+      expect(entry["node_id"]).to eq("!tele-blank")
+      expect(entry["rx_time"]).to eq(now)
+      expect(entry["rx_iso"]).to eq(Time.at(now).utc.iso8601)
+      %w[telemetry_time channel portnum hop_limit snr rssi bitfield payload_b64 battery_level voltage channel_utilization air_util_tx uptime_seconds temperature relative_humidity].each do |attribute|
+        expect(entry).not_to have_key(attribute), "expected #{attribute} to be omitted"
+      end
+
+      get "/api/telemetry/!tele-blank"
+
+      expect(last_response).to be_ok
+      filtered = JSON.parse(last_response.body)
+      expect(filtered.length).to eq(1)
+      expect(filtered.first).not_to have_key("battery_level")
+      expect(filtered.first).not_to have_key("portnum")
+    end
   end
 end

web/spec/config_spec.rb

@@ -115,6 +115,58 @@ RSpec.describe PotatoMesh::Config do
     end
   end
 
+  describe ".private_mode_enabled?" do
+    it "returns false when PRIVATE is unset" do
+      within_env("PRIVATE" => nil) do
+        expect(described_class.private_mode_enabled?).to be(false)
+      end
+    end
+
+    it "returns false when PRIVATE=0" do
+      within_env("PRIVATE" => "0") do
+        expect(described_class.private_mode_enabled?).to be(false)
+      end
+    end
+
+    it "returns true when PRIVATE=1" do
+      within_env("PRIVATE" => "1") do
+        expect(described_class.private_mode_enabled?).to be(true)
+      end
+    end
+
+    it "ignores surrounding whitespace" do
+      within_env("PRIVATE" => "  1  ") do
+        expect(described_class.private_mode_enabled?).to be(true)
+      end
+    end
+  end
+
+  describe ".federation_enabled?" do
+    it "returns true when FEDERATION is unset" do
+      within_env("FEDERATION" => nil, "PRIVATE" => "0") do
+        expect(described_class.federation_enabled?).to be(true)
+      end
+    end
+
+    it "returns false when FEDERATION=0" do
+      within_env("FEDERATION" => "0", "PRIVATE" => "0") do
+        expect(described_class.federation_enabled?).to be(false)
+      end
+    end
+
+    it "returns false when PRIVATE=1" do
+      within_env("FEDERATION" => "1", "PRIVATE" => "1") do
+        expect(described_class.federation_enabled?).to be(false)
+      end
+    end
+
+    it "ignores surrounding whitespace" do
+      within_env("FEDERATION" => " 0 ", "PRIVATE" => "0") do
+        expect(described_class.federation_enabled?).to be(false)
+      end
+    end
+  end
+
   describe ".legacy_well_known_candidates" do
     it "includes repository config directories" do
       Dir.mktmpdir do |dir|
@@ -138,14 +190,22 @@ RSpec.describe PotatoMesh::Config do
   end
 
   describe ".remote_instance_http_timeout" do
-    it "returns the baked-in connect timeout" do
-      expect(described_class.remote_instance_http_timeout).to eq(
-        PotatoMesh::Config::DEFAULT_REMOTE_INSTANCE_CONNECT_TIMEOUT,
-      )
+    it "returns the baked-in connect timeout when unset" do
+      within_env("REMOTE_INSTANCE_CONNECT_TIMEOUT" => nil) do
+        expect(described_class.remote_instance_http_timeout).to eq(
+          PotatoMesh::Config::DEFAULT_REMOTE_INSTANCE_CONNECT_TIMEOUT,
+        )
+      end
     end
 
-    it "ignores environment overrides" do
+    it "accepts positive environment overrides" do
       within_env("REMOTE_INSTANCE_CONNECT_TIMEOUT" => "27") do
+        expect(described_class.remote_instance_http_timeout).to eq(27)
+      end
+    end
+
+    it "rejects non-positive overrides" do
+      within_env("REMOTE_INSTANCE_CONNECT_TIMEOUT" => "0") do
         expect(described_class.remote_instance_http_timeout).to eq(
           PotatoMesh::Config::DEFAULT_REMOTE_INSTANCE_CONNECT_TIMEOUT,
         )
@@ -154,14 +214,22 @@ RSpec.describe PotatoMesh::Config do
   end
 
   describe ".remote_instance_read_timeout" do
-    it "returns the baked-in read timeout" do
-      expect(described_class.remote_instance_read_timeout).to eq(
-        PotatoMesh::Config::DEFAULT_REMOTE_INSTANCE_READ_TIMEOUT,
-      )
+    it "returns the baked-in read timeout when unset" do
+      within_env("REMOTE_INSTANCE_READ_TIMEOUT" => nil) do
+        expect(described_class.remote_instance_read_timeout).to eq(
+          PotatoMesh::Config::DEFAULT_REMOTE_INSTANCE_READ_TIMEOUT,
+        )
+      end
     end
 
-    it "ignores environment overrides" do
+    it "accepts positive overrides" do
       within_env("REMOTE_INSTANCE_READ_TIMEOUT" => "20") do
+        expect(described_class.remote_instance_read_timeout).to eq(20)
+      end
+    end
+
+    it "rejects non-positive overrides" do
+      within_env("REMOTE_INSTANCE_READ_TIMEOUT" => "-5") do
         expect(described_class.remote_instance_read_timeout).to eq(
           PotatoMesh::Config::DEFAULT_REMOTE_INSTANCE_READ_TIMEOUT,
         )
@@ -217,6 +285,78 @@ RSpec.describe PotatoMesh::Config do
     end
   end
 
+  describe ".federation_worker_pool_size" do
+    it "returns the baked-in pool size when unset" do
+      within_env("FEDERATION_WORKERS" => nil) do
+        expect(described_class.federation_worker_pool_size).to eq(
+          PotatoMesh::Config::DEFAULT_FEDERATION_WORKER_POOL_SIZE,
+        )
+      end
+    end
+
+    it "accepts positive overrides" do
+      within_env("FEDERATION_WORKERS" => "9") do
+        expect(described_class.federation_worker_pool_size).to eq(9)
+      end
+    end
+
+    it "rejects invalid overrides" do
+      within_env("FEDERATION_WORKERS" => "0") do
+        expect(described_class.federation_worker_pool_size).to eq(
+          PotatoMesh::Config::DEFAULT_FEDERATION_WORKER_POOL_SIZE,
+        )
+      end
+    end
+  end
+
+  describe ".federation_worker_queue_capacity" do
+    it "returns the baked-in queue capacity when unset" do
+      within_env("FEDERATION_WORK_QUEUE" => nil) do
+        expect(described_class.federation_worker_queue_capacity).to eq(
+          PotatoMesh::Config::DEFAULT_FEDERATION_WORKER_QUEUE_CAPACITY,
+        )
+      end
+    end
+
+    it "accepts positive overrides" do
+      within_env("FEDERATION_WORK_QUEUE" => "33") do
+        expect(described_class.federation_worker_queue_capacity).to eq(33)
+      end
+    end
+
+    it "rejects invalid overrides" do
+      within_env("FEDERATION_WORK_QUEUE" => "-1") do
+        expect(described_class.federation_worker_queue_capacity).to eq(
+          PotatoMesh::Config::DEFAULT_FEDERATION_WORKER_QUEUE_CAPACITY,
+        )
+      end
+    end
+  end
+
+  describe ".federation_task_timeout_seconds" do
+    it "returns the baked-in timeout when unset" do
+      within_env("FEDERATION_TASK_TIMEOUT" => nil) do
+        expect(described_class.federation_task_timeout_seconds).to eq(
+          PotatoMesh::Config::DEFAULT_FEDERATION_TASK_TIMEOUT_SECONDS,
+        )
+      end
+    end
+
+    it "accepts positive overrides" do
+      within_env("FEDERATION_TASK_TIMEOUT" => "47") do
+        expect(described_class.federation_task_timeout_seconds).to eq(47)
+      end
+    end
+
+    it "rejects invalid overrides" do
+      within_env("FEDERATION_TASK_TIMEOUT" => "-7") do
+        expect(described_class.federation_task_timeout_seconds).to eq(
+          PotatoMesh::Config::DEFAULT_FEDERATION_TASK_TIMEOUT_SECONDS,
+        )
+      end
+    end
+  end
+
   describe ".db_path" do
     it "returns the default path inside the data directory" do
       expect(described_class.db_path).to eq(described_class.default_db_path)

web/spec/database_spec.rb

@@ -0,0 +1,166 @@
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# frozen_string_literal: true
+
+require "spec_helper"
+require "sqlite3"
+
+RSpec.describe PotatoMesh::App::Database do
+  let(:harness_class) do
+    Class.new do
+      extend PotatoMesh::App::Database
+      extend PotatoMesh::App::Helpers
+
+      class << self
+        attr_reader :warnings
+
+        # Capture warning log entries generated during migrations for
+        # inspection within the unit tests.
+        #
+        # @param message [String] warning message text.
+        # @param context [String] logical source of the log entry.
+        # @param metadata [Hash] structured metadata supplied by the caller.
+        # @return [void]
+        def warn_log(message, context:, **metadata)
+          @warnings ||= []
+          @warnings << { message: message, context: context, metadata: metadata }
+        end
+
+        # Capture debug log entries generated during migrations for
+        # completeness of the helper interface.
+        #
+        # @param message [String] debug message text.
+        # @param context [String] logical source of the log entry.
+        # @param metadata [Hash] structured metadata supplied by the caller.
+        # @return [void]
+        def debug_log(message, context:, **metadata)
+          @debug_entries ||= []
+          @debug_entries << { message: message, context: context, metadata: metadata }
+        end
+
+        # Reset captured log entries between test examples.
+        #
+        # @return [void]
+        def reset_logs!
+          @warnings = []
+          @debug_entries = []
+        end
+      end
+    end
+  end
+
+  around do |example|
+    harness_class.reset_logs!
+
+    Dir.mktmpdir("db-upgrade-spec-") do |dir|
+      db_path = File.join(dir, "mesh.db")
+
+      RSpec::Mocks.with_temporary_scope do
+        allow(PotatoMesh::Config).to receive(:db_path).and_return(db_path)
+        allow(PotatoMesh::Config).to receive(:default_db_path).and_return(db_path)
+        allow(PotatoMesh::Config).to receive(:legacy_db_path).and_return(db_path)
+
+        example.run
+      end
+    end
+  ensure
+    harness_class.reset_logs!
+  end
+
+  # Retrieve column names for the requested table within the temporary
+  # database used for upgrade tests.
+  #
+  # @param table [String] table name whose columns should be returned.
+  # @return [Array<String>] names of the columns defined on +table+.
+  def column_names_for(table)
+    db = SQLite3::Database.new(PotatoMesh::Config.db_path, readonly: true)
+    db.execute("PRAGMA table_info(#{table})").map { |row| row[1] }
+  ensure
+    db&.close
+  end
+
+  it "adds missing telemetry columns when upgrading an existing schema" do
+    SQLite3::Database.new(PotatoMesh::Config.db_path) do |db|
+      db.execute("CREATE TABLE nodes(node_id TEXT)")
+      db.execute("CREATE TABLE messages(id INTEGER PRIMARY KEY)")
+      db.execute <<~SQL
+                   CREATE TABLE telemetry (
+                     id INTEGER PRIMARY KEY,
+                     node_id TEXT,
+                     node_num INTEGER,
+                     from_id TEXT,
+                     to_id TEXT,
+                     rx_time INTEGER NOT NULL,
+                     rx_iso TEXT NOT NULL,
+                     telemetry_time INTEGER,
+                     channel INTEGER,
+                     portnum TEXT,
+                     hop_limit INTEGER,
+                     snr REAL,
+                     rssi INTEGER,
+                     bitfield INTEGER,
+                     payload_b64 TEXT,
+                     battery_level REAL,
+                     voltage REAL,
+                     channel_utilization REAL,
+                     air_util_tx REAL,
+                     uptime_seconds INTEGER,
+                     temperature REAL,
+                     relative_humidity REAL,
+                     barometric_pressure REAL
+                   )
+                 SQL
+    end
+
+    harness_class.ensure_schema_upgrades
+
+    telemetry_columns = column_names_for("telemetry")
+    expect(telemetry_columns).to include(
+      "gas_resistance",
+      "current",
+      "iaq",
+      "distance",
+      "lux",
+      "white_lux",
+      "ir_lux",
+      "uv_lux",
+      "wind_direction",
+      "wind_speed",
+      "weight",
+      "wind_gust",
+      "wind_lull",
+      "radiation",
+      "rainfall_1h",
+      "rainfall_24h",
+      "soil_moisture",
+      "soil_temperature",
+    )
+
+    expect { harness_class.ensure_schema_upgrades }.not_to raise_error
+  end
+
+  it "initialises the telemetry table when it is missing" do
+    SQLite3::Database.new(PotatoMesh::Config.db_path) do |db|
+      db.execute("CREATE TABLE nodes(node_id TEXT)")
+      db.execute("CREATE TABLE messages(id INTEGER PRIMARY KEY)")
+    end
+
+    expect(column_names_for("telemetry")).to be_empty
+
+    harness_class.ensure_schema_upgrades
+
+    telemetry_columns = column_names_for("telemetry")
+    expect(telemetry_columns).to include("soil_temperature", "lux", "iaq")
+    expect(telemetry_columns).to include("rx_time", "battery_level")
+  end
+end

web/spec/federation_spec.rb

@@ -48,6 +48,23 @@ RSpec.describe PotatoMesh::App::Federation do
         def reset_warn_messages
           @warn_messages = []
         end
+
+        def settings
+          @settings ||= Struct.new(
+            :federation_thread,
+            :initial_federation_thread,
+            :federation_worker_pool,
+          ).new
+        end
+
+        def set(key, value)
+          writer = "#{key}="
+          if settings.respond_to?(writer)
+            settings.public_send(writer, value)
+          else
+            raise ArgumentError, "unsupported setting #{key}"
+          end
+        end
       end
     end
   end
@@ -57,6 +74,11 @@ RSpec.describe PotatoMesh::App::Federation do
     federation_helpers.instance_variable_set(:@remote_instance_verify_callback, nil)
     federation_helpers.reset_debug_messages
     federation_helpers.reset_warn_messages
+    federation_helpers.shutdown_federation_worker_pool!
+  end
+
+  after do
+    federation_helpers.shutdown_federation_worker_pool!
   end
 
   describe ".remote_instance_cert_store" do
@@ -298,6 +320,38 @@ RSpec.describe PotatoMesh::App::Federation do
     end
   end
 
+  describe ".federation_user_agent_header" do
+    it "combines the version and sanitized domain" do
+      allow(federation_helpers).to receive(:app_constant).and_call_original
+      allow(federation_helpers).to receive(:app_constant).with(:APP_VERSION).and_return("9.9.9")
+      allow(federation_helpers).to receive(:app_constant).with(:INSTANCE_DOMAIN).and_return("Example.Mesh")
+
+      header = federation_helpers.federation_user_agent_header
+
+      expect(header).to eq("PotatoMesh/9.9.9 (+https://example.mesh)")
+    end
+
+    it "falls back to the product name when the domain is unavailable" do
+      allow(federation_helpers).to receive(:app_constant).and_call_original
+      allow(federation_helpers).to receive(:app_constant).with(:APP_VERSION).and_return("1.2.3")
+      allow(federation_helpers).to receive(:app_constant).with(:INSTANCE_DOMAIN).and_return(nil)
+
+      header = federation_helpers.federation_user_agent_header
+
+      expect(header).to eq("PotatoMesh/1.2.3")
+    end
+
+    it "uses an explicit unknown marker when the version is blank" do
+      allow(federation_helpers).to receive(:app_constant).and_call_original
+      allow(federation_helpers).to receive(:app_constant).with(:APP_VERSION).and_return("")
+      allow(federation_helpers).to receive(:app_constant).with(:INSTANCE_DOMAIN).and_return("Example.Mesh")
+
+      header = federation_helpers.federation_user_agent_header
+
+      expect(header).to eq("PotatoMesh/unknown (+https://example.mesh)")
+    end
+  end
+
   describe ".perform_instance_http_request" do
     let(:uri) { URI.parse("https://remote.example.com/api") }
     let(:http_client) { instance_double(Net::HTTP) }
@@ -350,6 +404,30 @@ RSpec.describe PotatoMesh::App::Federation do
         federation_helpers.send(:perform_instance_http_request, uri)
       end.to raise_error(PotatoMesh::App::InstanceFetchError, "ArgumentError: restricted domain")
     end
+
+    it "applies federation headers to instance fetch requests" do
+      connection = instance_double("Net::HTTPConnection")
+      success_response = Net::HTTPOK.new("1.1", "200", "OK")
+      allow(success_response).to receive(:body).and_return("{}")
+      allow(success_response).to receive(:code).and_return("200")
+
+      captured_request = nil
+      allow(http_client).to receive(:start) do |&block|
+        block.call(connection)
+      end
+      allow(connection).to receive(:request) do |request|
+        captured_request = request
+        success_response
+      end
+
+      result = federation_helpers.send(:perform_instance_http_request, uri)
+
+      expect(result).to eq("{}")
+      expect(captured_request).not_to be_nil
+      expect(captured_request["Accept"]).to eq("application/json")
+      expect(captured_request["User-Agent"]).to eq(federation_helpers.send(:federation_user_agent_header))
+      expect(captured_request["Content-Type"]).to be_nil
+    end
   end
 
   describe ".announce_instance_to_domain" do
@@ -399,5 +477,220 @@ RSpec.describe PotatoMesh::App::Federation do
         federation_helpers.warn_messages.count { |message| message.include?("Federation announcement raised exception") },
       ).to eq(2)
     end
+
+    it "applies federation headers to announcement requests" do
+      https_client = instance_double(Net::HTTP)
+      allow(federation_helpers).to receive(:build_remote_http_client).with(https_uri).and_return(https_client)
+
+      captured_request = nil
+      allow(https_client).to receive(:start).and_yield(http_connection).and_return(success_response)
+      allow(http_connection).to receive(:request) do |request|
+        captured_request = request
+        success_response
+      end
+
+      result = federation_helpers.announce_instance_to_domain("remote.mesh", payload)
+
+      expect(result).to be(true)
+      expect(captured_request).not_to be_nil
+      expect(captured_request["Content-Type"]).to eq("application/json")
+      expect(captured_request["Accept"]).to eq("application/json")
+      expect(captured_request["User-Agent"]).to eq(federation_helpers.send(:federation_user_agent_header))
+    end
+  end
+
+  describe ".ensure_federation_worker_pool!" do
+    before do
+      allow(PotatoMesh::Config).to receive(:federation_worker_pool_size).and_return(1)
+      allow(PotatoMesh::Config).to receive(:federation_worker_queue_capacity).and_return(1)
+      allow(PotatoMesh::Config).to receive(:federation_task_timeout_seconds).and_return(0.05)
+    end
+
+    it "returns nil when federation is disabled" do
+      allow(federation_helpers).to receive(:federation_enabled?).and_return(false)
+
+      expect(federation_helpers.ensure_federation_worker_pool!).to be_nil
+    end
+
+    it "creates and memoizes the worker pool" do
+      allow(federation_helpers).to receive(:federation_enabled?).and_return(true)
+
+      pool = federation_helpers.ensure_federation_worker_pool!
+      expect(pool).to be_a(PotatoMesh::App::WorkerPool)
+      expect(federation_helpers.ensure_federation_worker_pool!).to equal(pool)
+    ensure
+      pool&.shutdown(timeout: 0.05)
+      federation_helpers.set(:federation_worker_pool, nil)
+    end
+  end
+
+  describe ".shutdown_federation_worker_pool!" do
+    it "logs an error when shutdown fails" do
+      pool = instance_double(PotatoMesh::App::WorkerPool)
+      allow(pool).to receive(:shutdown).and_raise(StandardError, "boom")
+
+      federation_helpers.set(:federation_worker_pool, pool)
+      federation_helpers.shutdown_federation_worker_pool!
+
+      expect(federation_helpers.warn_messages.last).to include("Failed to shut down federation worker pool")
+      expect(federation_helpers.send(:settings).federation_worker_pool).to be_nil
+    end
+  end
+
+  describe ".enqueue_federation_crawl" do
+    let(:pool) { instance_double(PotatoMesh::App::WorkerPool) }
+
+    it "returns false and logs when the pool is unavailable" do
+      allow(federation_helpers).to receive(:federation_worker_pool).and_return(nil)
+
+      result = federation_helpers.enqueue_federation_crawl(
+        "remote.mesh",
+        per_response_limit: 5,
+        overall_limit: 9,
+      )
+
+      expect(result).to be(false)
+      expect(federation_helpers.debug_messages.last).to include("Skipped remote instance crawl")
+    end
+
+    it "schedules ingestion work on the pool" do
+      allow(federation_helpers).to receive(:federation_worker_pool).and_return(pool)
+      db = instance_double(SQLite3::Database)
+      allow(db).to receive(:close)
+
+      expect(federation_helpers).to receive(:open_database).and_return(db)
+      expect(federation_helpers).to receive(:ingest_known_instances_from!).with(
+        db,
+        "remote.mesh",
+        per_response_limit: 5,
+        overall_limit: 9,
+      )
+
+      task = instance_double(PotatoMesh::App::WorkerPool::Task)
+      expect(pool).to receive(:schedule) do |&block|
+        block.call
+        task
+      end
+
+      result = federation_helpers.enqueue_federation_crawl(
+        "remote.mesh",
+        per_response_limit: 5,
+        overall_limit: 9,
+      )
+
+      expect(result).to be(true)
+      expect(db).to have_received(:close)
+    end
+
+    it "logs when the worker queue is saturated" do
+      allow(federation_helpers).to receive(:federation_worker_pool).and_return(pool)
+      allow(pool).to receive(:schedule).and_raise(PotatoMesh::App::WorkerPool::QueueFullError, "full")
+      expect(federation_helpers).to receive(:warn_log).with(
+        "Skipped remote instance crawl",
+        hash_including(
+          context: "federation.instances",
+          domain: "remote.mesh",
+          reason: "worker queue saturated",
+        ),
+      ).and_call_original
+
+      result = federation_helpers.enqueue_federation_crawl(
+        "remote.mesh",
+        per_response_limit: 1,
+        overall_limit: 2,
+      )
+
+      expect(result).to be(false)
+    end
+
+    it "logs when the worker pool is shutting down" do
+      allow(federation_helpers).to receive(:federation_worker_pool).and_return(pool)
+      allow(pool).to receive(:schedule).and_raise(PotatoMesh::App::WorkerPool::ShutdownError, "closed")
+      expect(federation_helpers).to receive(:warn_log).with(
+        "Skipped remote instance crawl",
+        hash_including(
+          context: "federation.instances",
+          domain: "remote.mesh",
+          reason: "worker pool shut down",
+        ),
+      ).and_call_original
+
+      result = federation_helpers.enqueue_federation_crawl(
+        "remote.mesh",
+        per_response_limit: 1,
+        overall_limit: 2,
+      )
+
+      expect(result).to be(false)
+    end
+  end
+
+  describe ".wait_for_federation_tasks" do
+    it "does nothing for empty input" do
+      federation_helpers.wait_for_federation_tasks([])
+      expect(federation_helpers.warn_messages).to be_empty
+    end
+
+    it "logs timeouts" do
+      task = instance_double(PotatoMesh::App::WorkerPool::Task)
+      allow(task).to receive(:wait).and_raise(PotatoMesh::App::WorkerPool::TaskTimeoutError, "late")
+      allow(PotatoMesh::Config).to receive(:federation_task_timeout_seconds).and_return(0.01)
+
+      federation_helpers.wait_for_federation_tasks([["remote.mesh", task]])
+
+      expect(federation_helpers.warn_messages.last).to include("task timed out")
+    end
+
+    it "logs unexpected failures" do
+      task = instance_double(PotatoMesh::App::WorkerPool::Task)
+      allow(task).to receive(:wait).and_raise(RuntimeError, "boom")
+      allow(PotatoMesh::Config).to receive(:federation_task_timeout_seconds).and_return(0.01)
+
+      federation_helpers.wait_for_federation_tasks([["remote.mesh", task]])
+
+      expect(federation_helpers.warn_messages.last).to include("task failed")
+    end
+  end
+
+  describe ".announce_instance_to_all_domains" do
+    let(:pool) { instance_double(PotatoMesh::App::WorkerPool) }
+
+    before do
+      allow(federation_helpers).to receive(:federation_enabled?).and_return(true)
+      allow(federation_helpers).to receive(:ensure_self_instance_record!).and_return([
+        { domain: "self.mesh" },
+        "signature",
+      ])
+      allow(federation_helpers).to receive(:instance_announcement_payload).and_return({})
+      allow(JSON).to receive(:generate).and_return("payload-json")
+      allow(federation_helpers).to receive(:federation_target_domains).and_return(%w[alpha.mesh beta.mesh])
+    end
+
+    it "schedules announcements on the worker pool" do
+      task = instance_double(PotatoMesh::App::WorkerPool::Task)
+      allow(federation_helpers).to receive(:wait_for_federation_tasks)
+      allow(federation_helpers).to receive(:federation_worker_pool).and_return(pool)
+      expect(pool).to receive(:schedule).twice.and_return(task)
+
+      federation_helpers.announce_instance_to_all_domains
+    end
+
+    it "falls back to synchronous announcements when the queue is saturated" do
+      allow(federation_helpers).to receive(:federation_worker_pool).and_return(pool)
+      allow(pool).to receive(:schedule).and_raise(PotatoMesh::App::WorkerPool::QueueFullError, "full")
+      allow(federation_helpers).to receive(:wait_for_federation_tasks)
+      expect(federation_helpers).to receive(:announce_instance_to_domain).with("alpha.mesh", "payload-json").once
+      expect(federation_helpers).to receive(:announce_instance_to_domain).with("beta.mesh", "payload-json").once
+
+      federation_helpers.announce_instance_to_all_domains
+    end
+
+    it "runs synchronously when the worker pool is unavailable" do
+      allow(federation_helpers).to receive(:federation_worker_pool).and_return(nil)
+      expect(federation_helpers).to receive(:announce_instance_to_domain).with("alpha.mesh", "payload-json")
+      expect(federation_helpers).to receive(:announce_instance_to_domain).with("beta.mesh", "payload-json")
+
+      federation_helpers.announce_instance_to_all_domains
+    end
   end
 end

web/spec/instances_spec.rb

@@ -0,0 +1,99 @@
+# Copyright (C) 2025 l5yth
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# frozen_string_literal: true
+
+require "spec_helper"
+require "sqlite3"
+
+RSpec.describe PotatoMesh::App::Instances do
+  let(:application_class) { PotatoMesh::Application }
+  let(:week_seconds) { PotatoMesh::Config.week_seconds }
+
+  # Execute the provided block with a configured SQLite connection.
+  #
+  # @param readonly [Boolean] whether the connection should be read-only.
+  # @yieldparam db [SQLite3::Database] configured database handle.
+  # @return [void]
+  def with_db(readonly: false)
+    db = SQLite3::Database.new(PotatoMesh::Config.db_path, readonly: readonly)
+    db.busy_timeout = PotatoMesh::Config.db_busy_timeout_ms
+    db.execute("PRAGMA foreign_keys = ON")
+    yield db
+  ensure
+    db&.close
+  end
+
+  before do
+    FileUtils.mkdir_p(File.dirname(PotatoMesh::Config.db_path))
+    application_class.init_db unless application_class.db_schema_present?
+    with_db do |db|
+      db.execute("DELETE FROM instances")
+    end
+  end
+
+  describe ".load_instances_for_api" do
+    it "only returns instances updated within the configured rolling window" do
+      fixed_time = Time.utc(2025, 1, 15, 12, 0, 0)
+      allow(Time).to receive(:now).and_return(fixed_time)
+
+      application_class.ensure_self_instance_record!
+
+      recent_timestamp = fixed_time.to_i - (week_seconds / 2)
+      stale_timestamp = fixed_time.to_i - week_seconds - 60
+
+      with_db do |db|
+        db.execute(
+          "INSERT INTO instances (id, domain, pubkey, last_update_time, is_private) VALUES (?, ?, ?, ?, ?)",
+          [
+            "recent-instance",
+            "recent.mesh.test",
+            PotatoMesh::Application::INSTANCE_PUBLIC_KEY_PEM,
+            recent_timestamp,
+            0,
+          ],
+        )
+        db.execute(
+          "INSERT INTO instances (id, domain, pubkey, last_update_time, is_private) VALUES (?, ?, ?, ?, ?)",
+          [
+            "stale-instance",
+            "stale.mesh.test",
+            PotatoMesh::Application::INSTANCE_PUBLIC_KEY_PEM,
+            stale_timestamp,
+            0,
+          ],
+        )
+        db.execute(
+          "INSERT INTO instances (id, domain, pubkey, is_private) VALUES (?, ?, ?, ?)",
+          [
+            "missing-instance",
+            "missing.mesh.test",
+            PotatoMesh::Application::INSTANCE_PUBLIC_KEY_PEM,
+            0,
+          ],
+        )
+      end
+
+      payload = application_class.load_instances_for_api
+      domains = payload.map { |row| row["domain"] }
+      lower_bound = fixed_time.to_i - week_seconds
+
+      expect(domains).to include("recent.mesh.test")
+      expect(domains).to include(application_class.app_constant(:INSTANCE_DOMAIN))
+      expect(domains).not_to include("stale.mesh.test")
+      expect(domains).not_to include("missing.mesh.test")
+      expect(payload.all? { |row| row["lastUpdateTime"] >= lower_bound }).to be(true)
+    end
+  end
+end

web/spec/worker_pool_spec.rb

@@ -0,0 +1,97 @@
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# frozen_string_literal: true
+
+require "spec_helper"
+require "timeout"
+
+RSpec.describe PotatoMesh::App::WorkerPool do
+  def with_pool(size: 2, queue: 2)
+    pool = PotatoMesh::App::WorkerPool.new(size: size, max_queue: queue, name: "spec-pool")
+    yield pool
+  ensure
+    pool&.shutdown(timeout: 0.5)
+  end
+
+  describe "#schedule" do
+    it "executes jobs asynchronously and exposes their return values" do
+      with_pool do |pool|
+        task = pool.schedule { 21 + 21 }
+        expect(task.wait(timeout: 1)).to eq(42)
+      end
+    end
+
+    it "propagates exceptions raised by the job block" do
+      with_pool do |pool|
+        task = pool.schedule { raise ArgumentError, "boom" }
+        expect { task.wait(timeout: 1) }.to raise_error(ArgumentError, "boom")
+      end
+    end
+
+    it "raises an error when the queue is saturated" do
+      with_pool(size: 1, queue: 1) do |pool|
+        gate = Queue.new
+        first_task = pool.schedule { gate.pop; :first }
+
+        Timeout.timeout(1) do
+          sleep 0.01 until gate.num_waiting.positive?
+        end
+
+        second_task = pool.schedule { gate.pop; :second }
+
+        expect do
+          pool.schedule { :third }
+        end.to raise_error(described_class::QueueFullError)
+
+        gate << nil
+        gate << nil
+        expect(first_task.wait(timeout: 1)).to eq(:first)
+        expect(second_task.wait(timeout: 1)).to eq(:second)
+      end
+    end
+  end
+
+  describe "#shutdown" do
+    it "prevents new work from being scheduled" do
+      pool = described_class.new(size: 1, max_queue: 1, name: "spec-pool")
+      pool.shutdown(timeout: 0.5)
+
+      expect do
+        pool.schedule { :after_shutdown }
+      end.to raise_error(described_class::ShutdownError)
+    ensure
+      pool.shutdown(timeout: 0.5)
+    end
+  end
+
+  describe PotatoMesh::App::WorkerPool::Task do
+    it "raises a timeout when the job exceeds the provided deadline" do
+      with_pool do |pool|
+        task = pool.schedule { sleep 0.1; :done }
+        expect do
+          task.wait(timeout: 0.01)
+        end.to raise_error(PotatoMesh::App::WorkerPool::TaskTimeoutError)
+        expect(task.wait(timeout: 1)).to eq(:done)
+      end
+    end
+
+    it "reports completion status" do
+      with_pool do |pool|
+        task = pool.schedule { :result }
+        expect(task.complete?).to be(false)
+        expect(task.wait(timeout: 1)).to eq(:result)
+        expect(task.complete?).to be(true)
+      end
+    end
+  end
+end

web/views/index.erb

@@ -76,10 +76,20 @@
   <% body_classes = [] %>
   <% body_classes << "dark" if initial_theme == "dark" %>
 <body class="<%= body_classes.join(" ") %>" data-app-config="<%= Rack::Utils.escape_html(app_config_json) %>" data-theme="<%= initial_theme %>">
-  <h1 class="site-title">
-    <img src="/potatomesh-logo.svg" alt="" aria-hidden="true" />
-    <span class="site-title-text"><%= site_name %></span>
-  </h1>
+  <div class="site-header">
+    <h1 class="site-title">
+      <img src="/potatomesh-logo.svg" alt="" aria-hidden="true" />
+      <span class="site-title-text"><%= site_name %></span>
+    </h1>
+    <% if !private_mode && federation_enabled %>
+      <div class="instance-selector">
+        <label class="visually-hidden" for="instanceSelect">Select a region</label>
+        <select id="instanceSelect" class="instance-select" aria-label="Select instance region">
+          <option value=""><%= Rack::Utils.escape_html("Select region ...") %></option>
+        </select>
+      </div>
+    <% end %>
+  </div>
   <div class="row meta">
     <div class="meta-info">
       <div class="refresh-row">