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

How to Recover from Detached HEAD in Git

You're working in a Git repository and suddenly see a message like 'You are in 'detac...

Fix Docker Volume Permission Denied for Postgres

Fix Error 0x800f081f in Windows 11: Step-by-Step Guide

Error 0x800f081f typically appears when you try to add a Windows feature (like .NET Framework 3.5...

Fix npm run build Failed with PostCSS Error

You run npm run build and see a PostCSS error. This often happens after updating pac...

Fix VS Code Git Authentication Failed for GitLab

If you see "Git authentication failed" in VS Code when pushing or pulling from a GitLab r...

Fix Ethernet Connected but No Internet on Windows 11

You plug in an Ethernet cable, Windows 11 shows you're connected, but websites won't load...