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

Git Detached HEAD vs Attached HEAD: What It Means and How to Fix

If you've seen the message "You are in 'detached HEAD' state" while using Git...

Fix Nginx Permission Denied for Static Files

Common Causes

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

VS Code IntelliSense Not Working for Python: Common Fixes

You open a Python file in VS Code, start typing, and no suggestions appear. IntelliSense is silen...

Fix git index.lock File Exists Error on Windows

If you see fatal: Unable to create 'index.lock': File exists. when running G...

Docker Compose Env Variable Not Available in Container: Fix

You define an environment variable in your docker-compose.yml file, but when you run...