Checklists for software errors, setup, and tool workflows.

Fix git index.lock File Exists Error on Windows

If you see fatal: Unable to create 'index.lock': File exists. when running G...

How to Enable Network Discovery for Shared Folder Access

When you can't see other computers in File Explorer's Network section, or you get an erro...

Fix Nginx Configuration Test Failure After Adding Proxy Pass

You add a proxy_pass directive to an Nginx server block, run nginx -t, ...

Cloudflare DNS Setup Propagation Not Completing: Fixes

You've updated your DNS records at Cloudflare, but hours later the changes still aren't s...

Fix Virtual Environment Not Activating in Terminal

Why Your Virtual Environment Won't Activate

You open a terminal, navigate to your pro...

Fixing NGINX 502 Bad Gateway in Docker Containers

When running NGINX as a reverse proxy in Docker, a 502 Bad Gateway error usually means NGINX cann...