Point your frame's "Tools Server" field at this server's host:port.
{{ cfg.immich_url }} (API key configured). Set via
IMMICH_URL/IMMICH_API_KEY in docker-compose.yml -- see
docker-compose.yml.example.IMMICH_URL and
IMMICH_API_KEY in docker-compose.yml (copy
docker-compose.yml.example) and restart the server.