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 &#...

Enable Edge Sync with Work or School Account

If you're trying to sync your Microsoft Edge settings, passwords, and favorites with a work o...

Fixing NGINX Upstream Connection Refused SSL Errors

When NGINX logs upstream connection refused for an SSL backend, it usually means the...

How to Fix npm Install Permission Denied on Mac

If you see EACCES: permission denied when running npm install, it's...

Setup Cloudflare Origin Certificate for Nginx

If you use Cloudflare as a reverse proxy, enabling HTTPS between Cloudflare and your Nginx server...

Fix Docker 'No Space Left on Device' on Mac

You're running Docker on a Mac and suddenly get an error: no space left on device