Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you're on a modern Linux distribution and see error: externally-managed-environment<...

Fix npm run build Failures After npm install
After running npm install, you may find that npm run build fails with c...

Fix Python Memory Errors on Mac with Large Files
If you’re seeing a MemoryError in Python on your Mac while trying to load or process...

Fix DNS Probe Finished NXDOMAIN Not Working on WiFi
If you see "DNS_PROBE_FINISHED_NXDOMAIN" in Chrome while connected to WiFi, your browser ...

Chrome Sync Not Working on School Chromebook: Fixes
If your Chrome browser isn't syncing bookmarks, passwords, or history on a school Chromebook,...

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