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

Fix Ubuntu apt update GPG missing key error

When running sudo apt update, you might see an error like:

Docker Daemon Not Running on Mac M1: Practical Fixes

If you're on a Mac with Apple Silicon (M1 or M2) and see "Docker daemon not running" when you try...

Docker Container Exit Code 0: Why It Restarts and How to Fix

You start a Docker container, it runs briefly, then stops with exit code 0. But when you check it...

Fix VSCode Extension Host Terminated Error Code 0

What does this error mean?

When you see 'Extension host terminated unexpectedly with erro...

Fix Windows Terminal High CPU Usage: Practical Steps

You open Task Manager and see Windows Terminal using 20–40% CPU even when idle. This usually poin...