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

How to Disable pip's Externally Managed Environment Warning

If you see the error error: externally-managed-environment when trying to install Py...

How to Fix Git Detached HEAD State and Undo Changes

You run git status and see something like "HEAD detached at abc123". This ha...

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...

Fix Python Memory Errors on Mac with Large Files

If you’re seeing a MemoryError in Python on your Mac while trying to load or process...

Nginx Upstream Connection Refused: Diagnosis and Fixes

When Nginx returns a 502 Bad Gateway or logs "upstream connection refused", it means Ngin...

Fix Nginx Permission Denied for Static Files

Common Causes

When Nginx returns a 403 Forbidden or 'permission denied' error for...