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

Fix 'Permission Denied' When Running pip install --user

When you run pip install --user somepackage and get a Permission denied...

Fix Nginx Configuration Test Failure After Adding Proxy Pass

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

Fix Discord Black Screen from Chrome Hardware Acceleration

Why Chrome Hardware Acceleration Causes Discord Black Screen

When Chrome uses hardware a...

Docker Container Exits Immediately with Exit Code 137

You start a Docker container, and it exits almost immediately with exit code 137. This usually me...

How to Fix Cloudflare Error 526: Invalid Origin Certificate

If you see Error 526: Invalid SSL Certificate in Cloudflare, it means Cloudflare...

Fixing NGINX Upstream Connection Refused SSL Errors

When NGINX logs upstream connection refused for an SSL backend, it usually means the...