Checklists for software errors, setup, and tool workflows.

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...

Fix Docker Compose Environment Variable Default Value Not Used

You define a default value for an environment variable in your docker-compose.yml file, but when ...

Firefox Secure Connection Failed on All Websites: Fix Guide

If Firefox shows 'Secure Connection Failed' on every website you try to visit, it usually...

Fix Windows Update Service Not Running Due to Group Policy

If Windows Update shows the service is not running and you suspect Group Policy, the problem is o...

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

Symptom

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