.env.development.local Apr 2026 require('dotenv').config({ path: './.env.development.local', }); ".env.development.local: A Best Practice for Environment-Specific Configuration in Software Development" .env.development.local DB_HOST=localhost DB_PORT=5432 DB_USERNAME=myuser DB_PASSWORD=mypassword API_KEY= myapikey Example of a dotenv configuration file: require('dotenv')