Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

When you run npm install or npm start and see npm ERR! package.js...

Fix Windows Search Index Exclude Folder Not Working
If you've added a folder to the exclusion list in Windows Search indexing options but files f...

VS Code Git Not Detecting Changes: Step-by-Step Fix
You've edited files in VS Code, but the Source Control panel shows no changes. The git icon m...

Fix Cloudflare Wildcard Subdomain DNS Propagation Delay
You set up a wildcard DNS record (e.g., *.example.com) in Cloudflare, but new subdom...

Python Virtual Environment Not Activating on Mac: Fixes
You open Terminal, run source venv/bin/activate, and nothing happens—or you get an e...

Checklist for Pushing Large Files with Git
You've likely hit this: you try to push a commit, and Git rejects it because a file is too la...