Configuration

Configuration

The app reads its configuration from environment variables. A template lives at compose/svelte-kit/.env.example.

Variable	Default	Purpose
DATABASE_PATH	./src/data.db	Path to the SQLite database file. The schema is created on first boot, so the path only needs to be writable. In the production image this is /app/src/data.db.
OPENAIP_API_KEY	unset	OpenAIP key for airspace overlays and no-fly-zone safety checks. Server-side only. When unset, /api/airspace returns an empty zone list and the airspace overlay and airspace safety checks are inactive; altitude and geofence checks still run.
VITE_ALTITUDE_ANGEL_API_KEY	unset	Key for the Altitude Angel airspace endpoint.
NODE_ENV	set by compose	production uses the serial link at /dev/ttyACM0; development uses the SITL TCP link.

OpenAIP key

Create a free account at openaip.net, generate an API key, and set OPENAIP_API_KEY. The key is read only in the server route /api/airspace, which queries OpenAIP and returns simplified zones to the front end, so the key is never exposed to the browser. See Mission Planning for how the zones drive the overlay and the pre-flight checks.