Cheatsheets
Dense references for things you look up rather than memorize.
A Table of LLM Models and AI Tools
Grok, Astra, Fable, Sol, Sonnet, Claude, Codex, CoWork. So many new things! Here's a cheatsheet to help you keep up.
DNS record types
A, AAAA, CNAME, MX, TXT — what each one is for and the ones you will actually set.
Git commands you will actually use
The dozen that cover almost everything, with the flags worth remembering.
Undoing things in Git
Which command to reach for depending on how far the mistake has travelled.