Checklists for software errors, setup, and tool workflows.

Fix VS Code Breakpoints Not Hitting in WSL

If you're debugging a project in WSL and VS Code breakpoints aren't being hit, you're...

Fix Nginx 502 Bad Gateway: Upstream Connection Refused

If you're seeing a 502 Bad Gateway error with "upstream connection refused" in your N...

Fix VSCode Permission Denied on Save in Linux

You're editing a file in Visual Studio Code, press Ctrl+S, and see a red error: "Failed t...

Git Merge Unrelated Histories Without Losing Commits

You've cloned a repo, added a new remote, and now you need to merge two branches that don'...

Fix 'git pull failed index.lock file exists' Error

When running git pull, you may see an error like:

fatal: Unable to create &#...

Python Virtual Environment Not Activating on Mac: Fixes

You open Terminal, run source venv/bin/activate, and nothing happens—or you get an e...