From af3d1281769adb49a4b8161b17197910291c0bb8 Mon Sep 17 00:00:00 2001
From: yellowcooln <12516003+yellowcooln@users.noreply.github.com>
Date: Thu, 27 Aug 2026 10:32:35 -0400
Subject: [PATCH] docs: add CARTO basemap key example

---
 config.yaml.example | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/config.yaml.example b/config.yaml.example
index c9a8978..a57a8d6 100644
--- a/config.yaml.example
+++ b/config.yaml.example
@@ -795,6 +795,11 @@ web:
   # Allows web frontends from different origins to access the API
   cors_enabled: false
 
+  # Optional CARTO Basemaps API key for theme-matched light and dark map tiles.
+  # The key is sent to CARTO by each browser; do not treat it as a server-side secret.
+  # When unset, the web interface uses light OpenStreetMap tiles in both themes.
+  carto_api_key: ""
+
   # Custom path to web frontend files (optional)
   # If not specified, uses the default built-in path
   # Example: /opt/custom-web-ui or /home/user/my-frontend