Checklists for software errors, setup, and tool workflows.

Fix 'pip externally managed environment' Permission Denied Error

If you see error: externally-managed-environment when trying to install a Python pac...

VSCode Terminal Not Opening After Extension Install: Fix

You install a new extension in Visual Studio Code, restart or reload, and then the terminal panel...

How to Fix Cloudflare 521 Error (Port 443 Blocked)

When you see a Cloudflare 521 error, it means Cloudflare’s servers cannot connect to your origin ...

Windows 11 Installation Assistant Not Completing Setup: Fixes

You launch the Windows 11 Installation Assistant, it runs for a while, then either stalls, throws...

Fix 'package.json Not Found' After Cloning a Repository

Symptom

You clone a repository from GitHub (or another remote), change into the directory...

Fix Git 'fatal: refusing to merge unrelated histories' on GitHub

You try to merge two branches in Git, and get fatal: refusing to merge unrelated histories<...