Debugging Environment Variables

Use the dev-tool app to inspect environment variables and validation errors.

The dev-tool app exposes an environment variables inspector at http://localhost:3010/variables when the dev-tool app is running.

Environment variables dev toolClick to expand

What It Reads

For the web app, the tool inspects the apps/web/.env* files and shows effective values plus validation state.

Extend the Tool

Add new variable definitions in:

apps/dev-tool/app/variables/lib/env-variables-model.ts

Related implementation files:

  • apps/dev-tool/app/variables/lib/env-scanner.ts
  • apps/dev-tool/app/variables/lib/server-actions.ts

Use this tool when you need to confirm which value wins across .env, .env.development, and .env.local.