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

Git Detached HEAD Warning Explained: Causes and Fixes

You see a warning: "You are in 'detached HEAD' state." This happens when you chec...

Checklist to Fix npm Permission Denied Errors

If you see "EACCES: permission denied" or "Error: EACCES, mkdir" when running npm...

Fix Discord Black Screen from Chrome Hardware Acceleration

Why Chrome Hardware Acceleration Causes Discord Black Screen

When Chrome uses hardware a...

DNS Probe Finished NXDOMAIN: Internet Connection but No Browsing Fix

You see the error 'DNS probe finished NXDOMAIN' on Chrome or other browsers, yet your int...

Fix net::ERR_CERT_AUTHORITY_INVALID on Chrome in Linux Terminal

When you see net::ERR_CERT_AUTHORITY_INVALID in Chrome on Linux, it usually means th...

Cloudflare Origin Certificate Not Working After Renewal: Fixes

If your Cloudflare origin certificate stops working after renewal, you are likely seeing SSL erro...