.env.development.local -

.env.local .env.*.local This ensures that no machine-specific file ever reaches your repository. Because .env.development.local is not committed, new developers won't have it. Create a .env.example or a README.md that lists what keys a developer should place in their local file.

// Load local override (highest priority) dotenv.config({ path: path.resolve(process.cwd(), '.env.development.local') }); To wield this powerful file safely and effectively, follow these rules: 1. Always Add .env.*.local to .gitignore At minimum, your .gitignore should contain: .env.development.local

# .env.development (shared) DEBUG_LEVEL=info USE_MOCK_PAYMENT_GATEWAY=true But on your local machine, you need to trace a deep bug: .env.development.local

// Load environment-specific if (process.env.NODE_ENV === 'development') { dotenv.config({ path: path.resolve(process.cwd(), '.env.development') }); } .env.development.local

API_URL=https://default.api.com APP_TITLE=My App

Example .env.example :