Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You try to run docker compose up and get an error like port is already allocat...

Fix VS Code Breakpoint Not Hit in Express App
You set a breakpoint in your Express route handler, start debugging, and the breakpoint is never ...

pnpm audit fix not working: common causes and fixes
When you run pnpm audit fix and it fails, you might see messages like "No fixes ...

Fix VS Code Git Authentication Failed Keychain Error
If you see "Git authentication failed" in VS Code on macOS, the problem is often the macO...

Git index.lock File Exists: Quick Fix Checklist
You try to run a Git command and see fatal: Unable to create 'path/.git/index.lock'...

Resolving Git Merge Conflicts in package-lock.json
If you work on a Node.js project with multiple contributors, you've likely seen a merge confl...