Checklists for software errors, setup, and tool workflows.

Fix Discord Black Screen from Chrome Hardware Acceleration

Why Chrome Hardware Acceleration Causes Discord Black Screen

When Chrome uses hardware a...

Fix Remote Desktop Connection Failed Due to Locked User Account

When you try to connect to a remote Windows computer via Remote Desktop (RDP) and see the error <...

Nginx Upstream Connection Refused: Diagnosis and Fixes

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

How to Fix Node Version Mismatch in a Project

You cloned a project, ran npm install, and got errors about engine incompatibility. ...

Fix VSCode Source Control Not Detecting Changes

You open the Source Control panel in Visual Studio Code, expecting to see your file changes, but ...

Fix NET::ERR_CERT_AUTHORITY_INVALID in Chrome Safe Mode

When you see NET::ERR_CERT_AUTHORITY_INVALID in Chrome while running in Safe Mod...