.env- -

The .env- problem extends beyond source code. Consider Docker:

In production, you need:

Accidentally running git add . instead of git add -p . Use tools like git-secrets to prevent committing sensitive info. Use tools like git-secrets to prevent committing sensitive

Most programming languages do not read .env files natively; they rely on lightweight open-source libraries to load these variables into the system environment at startup. Node.js (JavaScript/TypeScript) In the Node.js ecosystem, the standard package is dotenv . Install the package: npm install dotenv Install the package: npm install dotenv const dbHost

const dbHost = process.env.DB_HOST; const dbUser = process.env.DB_USER; const dbPassword = process.env.DB_PASSWORD; const apiKey = process.env.API_KEY; const dbUser = process.env.DB_USER

Never use real production API keys or database URLs during local development. Conclusion

Vite loads .env , .env.development , .env.production , and .env.local by default. Prefix Vite-specific variables with VITE_ .