.env file at the project root. Copy .env.example to .env and edit it. When running in Docker, host names like DB_HOST and REDIS_HOST match the Compose service names (postgres, redis).
Application
Database
Divine eCommerce targets PostgreSQL — full-text search and the boolean-safe write layer are built around it.
Cache & mail
Payments (optional)
A LiqPay payment gateway is included but off by default — checkout ships with cash on delivery and store pickup. To enable online payment you need to provideLIQPAY_* keys and add a payment_methods row with code='liqpay'.