Move Secrets to Environment Variables with AI

Set up a complete environment variable system for this project.

Create:

1. .env.example with all required variables and placeholder values
2. A typed config module that loads and validates env vars at startup
3. Clear error messages when required variables are missing
4. Separation between public (client-safe) and private (server-only) variables

Requirements:

• Fail fast: app should not start if required env vars are missing
• Type safety: config values should be typed, not just strings
• Documentation: comments explaining what each variable is for
• Defaults: sensible defaults for non-sensitive variables

Also ensure:

• .env is in .gitignore
• .env.local is in .gitignore
• Only .env.example is committed

Set up environment variables properly for my Next.js project.

Create:

1. .env.local.example with all variables
2. A lib/env.ts file that exports validated, typed env vars
3. Proper separation of NEXT_PUBLIC_ vars vs server-only vars

Rules:

• NEXT_PUBLIC_ prefix only for variables that MUST be in the browser
• Secret keys, API keys, database URLs must NOT have NEXT_PUBLIC_
• Validate at build time, not runtime
• Use zod or similar for validation

The config should work with both Pages Router and App Router.

Show me which variables are safe for client-side and which must stay server-only.

Create a type-safe environment variable configuration for my Node.js TypeScript project.

Requirements:

1. Use dotenv to load .env files
2. Create a config.ts that validates and exports typed env vars
3. Use zod for validation with clear error messages
4. Support different environments (development, production, test)
5. Throw at startup if required vars are missing

Structure:

• config/index.ts (main config export)
• config/schema.ts (zod schema)
• .env.example (template with all vars)

Include:

• DATABASE_URL
• API keys (typed as string, validated as non-empty)
• PORT (with default)
• NODE_ENV (enum: development, production, test)

Set up environment variable management for my Python project using Pydantic.

Create:

1. config.py with a Settings class using pydantic-settings
2. Proper .env file loading
3. Type hints and validation for all settings
4. Support for different environments

The Settings class should:

• Load from .env file automatically
• Validate types (strings, integers, booleans)
• Have clear field descriptions
• Raise validation errors with helpful messages
• Support nested settings if needed

Also create .env.example with all required variables documented.

Help me set up environment variables for Vercel deployment.

I need:

1. List of all env vars my app needs
2. Which ones should be marked as "Sensitive" in Vercel
3. Which ones need different values for Preview vs Production
4. How to reference them in my code

Also create a vercel.json if needed for any special env var configuration.

Format the output as a checklist I can follow in the Vercel dashboard, with the variable name, which environments it applies to, and whether it's sensitive.

Set up environment variables for Railway (or Render) deployment.

Create:

1. A railway.toml or render.yaml with env var references
2. List of all required env vars I need to set in the dashboard
3. Documentation for each variable's purpose
4. Any service-specific variables (like PORT for Railway)

Include platform-specific considerations:

• Railway provides PORT automatically
• Database URLs from Railway's built-in databases
• Proper health check configuration

I have hardcoded configuration values throughout my codebase. Help me migrate them to environment variables.

For each hardcoded value found:

1. Create an appropriately named env var
2. Update the code to read from env var
3. Add to .env.example with a placeholder
4. Add to the config validation

Look for:

• URLs (API endpoints, webhooks)
• Credentials and keys
• Feature flags
• Configuration values (timeouts, limits)
• Third-party service IDs

Group related variables and use consistent naming:

• DATABASE_URL, DATABASE_POOL_SIZE
• STRIPE_SECRET_KEY, STRIPE_WEBHOOK_SECRET
• FEATURE_NEW_DASHBOARD, FEATURE_BETA_ACCESS