Workflow manuals for setup steps, repeatable tasks, and software operations.

Fix 'git pull failed index.lock file exists' Error

When running git pull, you may see an error like:

fatal: Unable to create &#...

Fix Nginx 502 Bad Gateway with Docker Environment Variables

If you see a 502 Bad Gateway from nginx running in Docker, it usually means ngin...

Fix Windows Security App Permission Issues

You open Windows Security and see a message like "This app has been blocked for your protecti...

How to Disable Chrome Extensions to Free Up Memory

If Chrome is using too much memory, extensions are a common culprit. Each extension runs its own ...

How to Disable Shell Extensions to Stop Explorer Restarting

If File Explorer keeps restarting, crashing, or freezing on its own, a misbehaving shell extensio...

Cloudflare Wildcard Subdomain CNAME Setup Guide

If you need to route all subdomains (e.g., *.example.com) to the same target, a wildcard CNAME re...