Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You run source venv/bin/activate (or venv\Scripts\activate on Windows) ...

You're installing Windows 11 and the progress bar hangs at 99% for a long time. This is a kno...

When you run npm install or yarn install and see an error like en...

Fix Blue Screen Loop After Windows 11 Update
You install a Windows 11 update, restart, and then get stuck in a blue screen loop—the system cra...

Git Merge Conflict Checklist Before Merging
You're about to merge a branch, but you've been burned by merge conflicts before. This ch...

Fix Firefox Secure Connection Failed on Mac
If you see "Secure Connection Failed" in Firefox on your Mac, the browser is blocking the...