This app uses headers with underscores, so in order to make it work set underscores_in_headers on; in your default server configuration (/etc/nginx/sites-available/default by default).
FLASK_ENV— environment type (development | production)FLASK_APP— name of main flask app moduleDATABASE_URL— database url for use with backendJWT_SECRET_KEY— key to hash passwordADMIN_PSWD— password for admin user to be set on initial startupADMIN_EMAIL— email for admin user to be set on initial startupMIGRATIONS_DIR— full or relative to current directory path to alembic migrationsBACKEND_LOGS— path where to store logs