Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you're seeing unexpected build errors, outdated dependencies, or running low on disk space...

You've run the Windows 11 Installation Assistant, it reached 99% after restart, and now it...

If you're running WordPress in Docker behind an Nginx reverse proxy, a 502 Bad Gateway error ...

If you see node-sass build failed python not found when running npm install

Fix Nginx Upstream Connection Refused Socket Error
When Nginx returns a 502 Bad Gateway or logs upstream connection refused

How to Fix Git Merge Conflict Permission Denied Errors
You're in the middle of a git merge, and instead of the usual conflict markers, you see