Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

When you run git push and see rejected! non-fast-forward, it means your...

You click Start in Docker Desktop, the whale icon spins, but nothing happens — o...

You open the integrated terminal in VS Code, type a command you know is installed, and get ...

How to Manually Remove a Stuck Git index.lock File
If Git operations suddenly fail with an error like fatal: Unable to create 'path/.git/i...

Fix 'git remote add origin already exists' Error
When you run git remote add origin <url> and see fatal: remote origin al...

Checklist for Pushing Large Files with Git
You've likely hit this: you try to push a commit, and Git rejects it because a file is too la...