export PORT=8080 export DB_HOST=localhost export DB_USER=postgres export DB_PASSWORD=password export DB_NAME=db_name export DB_PORT=5432 export DATABASE_URL=postgres://${DB_USER}:${DB_PASSWORD}@${DB_HOST}:${DB_PORT}/${DB_NAME} export SESSION_KEY="1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef"