Checklists for software errors, setup, and tool workflows.

Fix Cloudflare Origin Certificate with Let's Encrypt

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

Cloudflare Wildcard Subdomain Cache Not Working: Fixes

If you use a wildcard DNS record like *.example.com proxied through Cloudflare, you ...

Fix VS Code Terminal Not Opening Due to Settings

You click the terminal panel icon in VS Code, but nothing happens. The panel doesn't slide up...

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 VSCode Terminal Permission Denied in Python venv

If you see bash: /path/to/venv/bin/activate: Permission denied when trying to activa...

Fix Python UnicodeDecodeError 'charmap' Codec

You're reading a file in Python and get:

UnicodeDecodeError: 'charmap' ...