diff --git a/.gitignore b/.gitignore
index d50e468..a0761aa 100644
--- a/.gitignore
+++ b/.gitignore
@@ -65,3 +65,4 @@ reports/
 
 # AI planning and documentation
 ai_docs/
+*.log
diff --git a/DOCKER.md b/DOCKER.md
index e386d50..2c3a1b4 100644
--- a/DOCKER.md
+++ b/DOCKER.md
@@ -32,11 +32,12 @@ Edit `.env` file or run `./configure.sh` to set:
 ## Device Setup
 
 **Find your device:**
+
 ```bash
 # Linux
 ls /dev/ttyACM* /dev/ttyUSB*
 
-# macOS  
+# macOS
 ls /dev/cu.usbserial-*
 
 # Windows
@@ -44,6 +45,7 @@ ls /dev/ttyS*
 ```
 
 **Set permissions (Linux/macOS):**
+
 ```bash
 sudo chmod 666 /dev/ttyACM0
 # Or add user to dialout group
@@ -72,6 +74,7 @@ docker-compose pull && docker-compose up -d
 ## Troubleshooting
 
 **Device access issues:**
+
 ```bash
 # Check device exists and permissions
 ls -la /dev/ttyACM0
@@ -81,12 +84,14 @@ sudo chmod 666 /dev/ttyACM0
 ```
 
 **Port conflicts:**
+
 ```bash
 # Find what's using port 41447
 sudo lsof -i :41447
 ```
 
 **Container issues:**
+
 ```bash
 # Check logs
 docker-compose logs
@@ -95,4 +100,4 @@ docker-compose logs
 docker-compose restart
 ```
 
-For more Docker help, see [Docker Compose documentation](https://docs.docker.com/compose/).
\ No newline at end of file
+For more Docker help, see [Docker Compose documentation](https://docs.docker.com/compose/).
diff --git a/README.md b/README.md
index 83f4717..b94700a 100644
--- a/README.md
+++ b/README.md
@@ -16,9 +16,9 @@ A simple Meshtastic-powered node dashboard for your local community. _No MQTT cl
 
 Live demo for Berlin #MediumFast: [potatomesh.net](https://potatomesh.net)
 
-![screenshot of the second version](./scrot-0.2.png)
+![screenshot of the third version](./scrot-0.3.png)
 
-## 🐳 Quick Start with Docker
+## Quick Start with Docker
 
 ```bash
 ./configure.sh          # Configure your setup
@@ -27,8 +27,8 @@ docker-compose logs -f   # View logs
 ```
 
 PotatoMesh uses host networking by default so it can run on restricted
-systems where Docker cannot create bridged interfaces.  The web UI listens on
-`http://127.0.0.1:41447` immediately without explicit port mappings.  If you
+systems where Docker cannot create bridged interfaces. The web UI listens on
+`http://127.0.0.1:41447` immediately without explicit port mappings. If you
 are using Docker Desktop (macOS/Windows) or otherwise require bridged
 networking, enable the Compose profile with:
 
@@ -88,8 +88,10 @@ SITE_NAME="Meshtastic Berlin" MAP_CENTER_LAT=52.502889 MAP_CENTER_LON=13.404194
 The web app contains an API:
 
 * GET `/api/nodes?limit=100` - returns the latest 100 nodes reported to the app
+* GET `/api/positions?limit=100` - returns the latest 100 position data
 * GET `/api/messages?limit=100` - returns the latest 100 messages
 * POST `/api/nodes` - upserts nodes provided as JSON object mapping node ids to node data (requires `Authorization: Bearer <API_TOKEN>`)
+* POST `/api/messages` - appends positions provided as a JSON object or array (requires `Authorization: Bearer <API_TOKEN>`)
 * POST `/api/messages` - appends messages provided as a JSON object or array (requires `Authorization: Bearer <API_TOKEN>`)
 
 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.
@@ -134,6 +136,11 @@ node records and parsing new incoming messages. Enable debug output with `DEBUG=
 specify the serial port with `MESH_SERIAL` (default `/dev/ttyACM0`) or set it to an IP
 address (for example `192.168.1.20:4403`) to use the Meshtastic TCP interface.
 
+## Demos
+
+* <https://potatomesh.net/>
+* <https://vrs.kdd2105.ru/>
+
 ## License
 
 Apache v2.0, Contact <COM0@l5y.tech>
diff --git a/scrot-0.3.png b/scrot-0.3.png
new file mode 100644
index 0000000..8973a37
Binary files /dev/null and b/scrot-0.3.png differ
diff --git a/web/app.rb b/web/app.rb
index 45b28f5..20b73fe 100644
--- a/web/app.rb
+++ b/web/app.rb
@@ -40,7 +40,7 @@ MAX_JSON_BODY_BYTES = begin
   rescue ArgumentError
     DEFAULT_MAX_JSON_BODY_BYTES
   end
-VERSION_FALLBACK = "v0.2.1"
+VERSION_FALLBACK = "v0.3.0"
 
 def fetch_config_string(key, default)
   value = ENV[key]