.env.local.production Review

# Correct .env.local .env.*.local .env.local.production .env.*

Without .env.production.local (or .env.local.production ), you would need to deploy to staging every time you test a change. With the file, you run: .env.local.production

// Order of precedence (lowest to highest priority) const files = [ .env , .env.$nodeEnv , .env.local , .env.$nodeEnv.local , .env.local.$nodeEnv // Support for the inverted pattern ]; # Correct

for (const file of files) const result = dotenv.config( path: path.resolve(process.cwd(), file), override: true ); if (result.error && result.error.code !== 'ENOENT') console.warn( Error loading $file: , result.error); However, due to developer confusion or legacy configuration

NODE_ENV=production npm run build But you cannot use your live production database or live payment API keys on your laptop. You need a local "production-like" environment.

However, due to developer confusion or legacy configuration scripts, you will occasionally find the inverted version: .