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

Windows 11 Installation Assistant Stuck at 99% Due to Antivirus

You're running the Windows 11 Installation Assistant, it gets to 99%, and then just sits ther...

Cloudflare Wildcard Subdomain Cache Not Working: Fixes

If you use a wildcard DNS record like *.example.com proxied through Cloudflare, you ...

Python Virtual Environment Activation Failed: Common Fixes

You've created a Python virtual environment, but when you try to activate it, nothing happens...

Git Push Rejected Non Fast Forward: Troubleshooting Checklist

Fix Nginx Upstream Connection Refused in Docker

You have Nginx running, either on the host or in a container, proxying to another Docker containe...

Fix Git SSL Certificate Problem: Unable to Get Local Issuer on GitHub

If you see fatal: unable to access 'https://github.com/...': SSL certificate proble...