Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

Fix VSCode Terminal Permission Denied in Python venv

Fix VSCode Terminal Permission Denied in Python venv

If you see bash: /path/to/venv/bin/activate: Permission denied when trying to activa...

Fix VS Code Permission Denied Error on Windows 11

Fix VS Code Permission Denied Error on Windows 11

If you see "permission denied" when saving files, running terminals, or using extensions ...

Git Detached HEAD vs Attached HEAD: What It Means and How to Fix

Git Detached HEAD vs Attached HEAD: What It Means and How to Fix

If you've seen the message "You are in 'detached HEAD' state" while using Git...

Windows 11 Installation Assistant Stuck at 99%: How to Reset and Finish

Windows 11 Installation Assistant Stuck at 99%: How to Reset and Finish

You're upgrading to Windows 11 using the Installation Assistant, and it gets stuck at 99% for...

VSCode Terminal Not Opening After Extension Install: Fix

VSCode Terminal Not Opening After Extension Install: Fix

You install a new extension in Visual Studio Code, restart or reload, and then the terminal panel...

Git Merge Unrelated Histories vs Rebase: When and How to Use Each

Git Merge Unrelated Histories vs Rebase: When and How to Use Each

You've tried to merge two Git branches and got the error: fatal: refusing to merge unre...