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...

How to Fix a Detached HEAD in Git Using SourceTree

If you open SourceTree and see a message like “You are in ‘detached HEAD’ state,” it means your w...

Fix Python UnicodeDecodeError in Socket Data

When working with Python sockets, you may encounter a UnicodeDecodeError while tryin...

Resolving Python Dependency Conflicts in setup.py

When you run pip install . or python setup.py develop, a dependency con...

Fix ERR_CERT_AUTHORITY_INVALID in Chrome Incognito Mode

You open Chrome incognito and hit a warning: NET::ERR_CERT_AUTHORITY_INVALID. Th...

Git Push Rejected Non Fast Forward: Troubleshooting Checklist