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

Git Push Rejected Non Fast Forward: Troubleshooting Checklist

How to Fix Python Dependency Conflicts When Installing Packages

You run pip install some-package and get a wall of text about conflicting dependenci...

Windows Security App Not Working After Reset? Try These Fixes

If you recently reset your Windows PC and now the Windows Security app won't open, shows a bl...

Fix Nginx Upstream Connection Refused in Docker

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

Docker Desktop Engine Stopped: Fix Firewall Block

If Docker Desktop shows “Engine Stopped” and you suspect a firewall block, here’s how to diagnose...

How to Set Node Version for a Project

When working on multiple projects that require different Node.js versions, you may encounter erro...