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

How to Fix Windows Update Error 0x800f081f (Missing Files)

You see error 0x800f081f when running Windows Update, often with a message like 'The source f...

Fix Docker Nginx 502 Bad Gateway with MySQL

You have a Dockerized web app behind Nginx, and you're seeing a 502 Bad Gateway error. The ap...

Docker Compose 'Network Not Found' Error Fix

When running docker compose up, you might see an error like:

network "my...

Fix Nginx Upstream Connection Refused Socket Error

When Nginx returns a 502 Bad Gateway or logs upstream connection refused