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

Nginx Upstream Connection Refused: Diagnosis and Fixes

When Nginx returns a 502 Bad Gateway or logs "upstream connection refused", it means Ngin...

Windows 11 Blue Screen After Driver Update: Rollback Fix

You update a driver in Windows 11, and then you get a blue screen on reboot. This is a common pro...

How to Fix Chrome Using 100% Memory on Windows and Mac

You open Chrome, and your computer slows to a crawl. Task Manager shows Chrome using 100% memory....

Fix Git SSL Certificate Error: Unable to Get Local Issuer Certificate

When cloning or pulling from a Git repository, you may see:

fatal: unable to access...