.env.development — Secure

: Avoid manually changing variables every time you move from writing code locally to deploying it.

: Share a standard set of non-sensitive development variables with your team via a template (often called .env.example ). Common Use Cases .env.development

The .env.development file typically contains "safe" or local-only information. Key examples include: : Avoid manually changing variables every time you

: Pointing to a local server (e.g., http://localhost:3000 ) instead of a production domain. .env.development

: Credentials for sandbox environments or mock payment gateways (like Stripe’s test keys). Best Practices for Security and Efficiency Environment variables - Vercel