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

Fixing Cloudflare Wildcard Subdomain Proxy Errors

If you've set up a wildcard DNS record (e.g., *.example.com) in Cloudflare and a...

Fix ENOENT Error: package.json Not Found in React App

When running npm start or npm install in a React app, you may see an er...

Bluetooth Hardware Not Found on Windows 11: Fixes

You open Bluetooth settings in Windows 11 and see 'Bluetooth hardware not found' – no swi...

Docker Desktop Engine Troubleshooting Checklist

When Docker Desktop fails to start or the engine stops responding, the cause is often a misconfig...

Git index.lock File Exists Even After Deleting: Fixes

You delete the .git/index.lock file, but Git still says it exists. This can happen d...

Docker Compose .env File Not Loading: Common Fixes