# Supported environment variables | Variable | Description | Required | Default value | | ---------| ----------- | -------- | ------------- | | SQLALCHEMY_DATABASE_URI | SQL Alchemy URI to connect to database | N | | | SECRET_KEY | Flask secret key [^1] | Y | | [^1]: Flask secret key (see https://flask.palletsprojects.com/en/2.0.x/config/#SECRET_KEY for how to generate)