Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you've set a breakpoint in Visual Studio Code and it's not being hit, or you're no...

You run a Docker container and it stops almost instantly with exit code 0. This means the main pr...

If you see the error error: externally-managed-environment when running pip in...

How to Fix Firefox Secure Connection Failed SSL Errors
When Firefox shows a "Secure Connection Failed" error with an SSL-related message, it mea...

Fix 'Permission Denied' When Running pip install --user
If you see Permission denied when running pip install --user somepackage

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...