Checklists for software errors, setup, and tool workflows.

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

Symptom

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

How to Fix Nginx Upstream Connection Refused on Port 80

When nginx logs show "upstream connection refused" while connecting to port 80, it means ...

Fix Windows Search Indexing Error 0x80040c41

If you see error 0x80040c41 when searching in Windows, the indexing service is likely stuck due t...

Python Virtual Environment Not Activating in Git Bash: Fixes

You're in Git Bash on Windows, you run source venv/Scripts/activate, and nothing...

How to Fix Chrome Memory Hogging on Windows and Mac

You open Chrome, and your system slows to a crawl. The fan spins up, apps lag, and Task Manager s...

Recover Lost Changes After Git Detached HEAD

You've made several edits, then checked out an old commit or tag, and now Git says you're...