.env.local.production May 2026

"scripts": "build:prod-local": "NODE_ENV=production node env-loader.js && npm run build"

Audit your environment loading logic today. Does your framework recognize .env.local.production ? If not, you may be chasing bugs that don't exist. If yes, use it wisely—and never, ever commit it. .env.local.production

# Correct .env.local .env.*.local .env.local.production .env.* If yes, use it wisely—and never, ever commit it

When you run npm run build --mode=production , the system loads .env.production , then overwrites it with .env.local.production . If your application must work in an offline environment (e.g., an IoT device, a ship, or a secure government facility), you might prepopulate caches, mock external APIs, or use local fallbacks. These settings should only be active when NODE_ENV=production and you are on a specific approved machine. override: true )

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);