# Backend port PORT=4000 # MySQL mode is enabled when MYSQL_HOST or MYSQL_URL is set. # If neither is set, backend runs in memory mode. # Option A: full URL # MYSQL_URL=mysql://user:password@127.0.0.1:3306/lunch_picker # Option B: split fields MYSQL_HOST=127.0.0.1 MYSQL_PORT=3306 MYSQL_USER=root MYSQL_PASSWORD=secret MYSQL_DATABASE=lunch_picker