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core-app separates Docker environment configuration, standalone backend configuration, and frontend build settings. Use the template for the execution mode you choose.

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Database connection

LAKEBASE_DATABASE_URL supplies a static database connection and bypasses credential minting. Otherwise, the backend builds a connection from LAKEBASE_HOST, LAKEBASE_PORT, LAKEBASE_DATABASE, and LAKEBASE_INSTANCE_NAME and mints a short-lived credential using the Databricks SDK. LAKEBASE_PORT defaults to 5432. Set DATABRICKS_HOST to the workspace used by the SDK. The standalone backend loads its local environment file automatically without overriding values already present in the process environment.

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Frontend and identity

Frontend settings include VITE_B2C_*, the API base URL, and the Mapbox token. Backend group settings distinguish platform administrators and internal users. Keep deployment credentials in the approved secret stores; do not copy real values into documentation or Git.
Use the checked-in templates as the complete variable inventory. This page documents the main configuration boundaries rather than reproducing every setting.