Knowledge base for software setup, errors, and daily tool work.

Fix NET::ERR_CERT_AUTHORITY_INVALID in Chrome

When Chrome shows 'NET::ERR_CERT_AUTHORITY_INVALID', it means the browser cannot verify t...

Fix Chrome Black Screen in Remote Desktop with Hardware Acceleration Off

You're remoted into another machine, open Chrome, and the screen goes black—or the browser wi...

How to Fix Git Detached HEAD and Checkout a Branch

You're working in a Git repository, make some commits, and then realize you're in a '...

Fix Nginx 502 Bad Gateway with Docker Multiple Containers

If you run Nginx as a reverse proxy in front of multiple Docker containers, a 502 Bad Gateway err...

Fix pnpm ERR_PNPM_NO_OFFLINE_META: Step-by-Step Guide

You run pnpm install and see ERR_PNPM_NO_OFFLINE_META. This usually hap...

Fix Nginx Upstream Connection Refused Socket Error