Checklists for software errors, setup, and tool workflows.

Cloudflare Origin Certificate Setup for cPanel

If you use Cloudflare as a reverse proxy, you can install a Cloudflare Origin Certificate on your...

Python Virtual Environment Not Activating in Git Bash: Fixes

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

Fix npm Global Install Permission Denied Without Sudo

When you run npm install -g and see "EACCES: permission denied", it's be...

Fix ERR_CERT_AUTHORITY_INVALID in Chrome Incognito Mode

You open Chrome incognito and hit a warning: NET::ERR_CERT_AUTHORITY_INVALID. Th...

Fix Nginx 502 Bad Gateway in Docker Containers

An Nginx 502 Bad Gateway error when proxying to a Docker container usually means Nginx cannot rea...

Fix Git index.lock File Exists Permission Denied Error

You're in the middle of a Git operation and suddenly you see:

fatal: Unable to ...