Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You click “Add to Chrome” on the Web Store, but nothing happens, or the extension never appears. ...

You set environment variables in a .env file next to your docker-compose.yml

Fix npm run build failing due to ESLint errors
You run npm run build and it fails with a wall of ESLint errors. This is common when...

Fix Docker Compose Volume Permission Denied Errors
You run docker compose up and see errors like Permission denied when a ...

Fix Nginx Upstream Connection Refused Socket Error
When Nginx returns a 502 Bad Gateway or logs upstream connection refused

Fix 'Port Already Used by Another Container' in Docker Compose
When you run docker compose up and see an error like port is already allocated...