Knowledge base for software setup, errors, and daily tool work.

Prevent Git Index Lock File Creation: Practical Fixes

If you see fatal: Unable to create 'path/to/.git/index.lock': File exists., ...

Recover Lost Commits After Git Detached HEAD

You've made commits while in a detached HEAD state, and now you can't see them on any bra...

Fixing Cloudflare 521 Error: Origin Unreachable

When you see Cloudflare error 521, it means your origin server is refusing the connection from Cl...

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...

Fix pnpm ERR! Cannot Find Module – Practical Steps

Fix VS Code 'Cannot Save File: Permission Denied' on Mac

You're editing a file in VS Code on your Mac, hit save, and get: 'Failed to save:...