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

Git Detached HEAD: Practical Checklist and Fixes

You see a message like 'You are in 'detached HEAD' state' when checking out a com...

Fix Node Sass Build Failure After npm Cache Clean

Fix Permission Denied When Running Script in VS Code Terminal

You try to run a script in the VS Code integrated terminal and see 'permission denied'. T...

Fix DNS Probe Finished NXDOMAIN on Google DNS Setup

If you see "DNS probe finished NXDOMAIN" in your browser, it means your device couldn'...

Fixing Nginx 502 Bad Gateway in Docker: Practical Steps

You set up Nginx as a reverse proxy in Docker, but instead of your app you see a 502 Bad Gateway....

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...