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

Fix Cloudflare Origin Certificate with Let's Encrypt

If your origin server is rejecting the Cloudflare origin certificate—perhaps because of a SAN mis...

Fix Firefox Secure Connection Failed DNS Error

You try to visit a website in Firefox and see 'Secure Connection Failed' with an error li...

Fix Chrome Hardware Acceleration Black Screen on External Monitor

If you connect an external monitor to your laptop and Chrome shows a black screen on that display...

Fix Git SSL Certificate Problem: Unable to Get Local Issuer

You run git clone https://example.com/repo.git and get:

fatal: unable to acc...

How to Fix Cloudflare 522 Error (Firewall Blocking)

If you see a Cloudflare 522 error, the connection between Cloudflare and your origin server timed...

Fixing Nginx Permission Denied on Mounted Drive

When you mount an external drive and point Nginx to serve files from it, you may get a 403 Forbid...