Checklists for software errors, setup, and tool workflows.

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

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

fatal: Unable to create &#...

How to Fix Python Dependency Conflicts When Installing Packages

You run pip install some-package and get a wall of text about conflicting dependenci...

How to Fix Chrome Startup Crash by Disabling Extensions

If Chrome crashes as soon as you open it, a misbehaving extension is often the culprit. Extension...

Cloudflare Origin Certificate Not Showing in Dashboard: Fix

If you've generated a Cloudflare origin certificate but it doesn't appear in your dashboa...

Fix Git Push Rejected: Non-Fast-Forward Error

You try to push a commit to a remote repository and get: ! [rejected] main -> main (non-...