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

Fix Nginx Upstream Connection Refused Behind Cloudflare

If you see upstream connection refused in your Nginx error logs while using Cloudfla...

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 Windows Security App Blocked by Antivirus

You open Windows Security (formerly Windows Defender) only to see an error or blank screen becaus...

How to Generate a Cloudflare Origin Certificate

If you're using Cloudflare as a reverse proxy, you may want to encrypt traffic between your s...

Fix Windows Update Error 0x800f081f with Clean Boot

If you see error 0x800f081f while installing a Windows update, it usually means the update files ...

Fix Python UnicodeDecodeError 'charmap' Codec

You're reading a file in Python and get:

UnicodeDecodeError: 'charmap' ...