I'm a tech professional (ex-Amazon) with experience including software engineering, and management. Currently living in NYC. Simple TMUX cheatsheet & reference
TMUX is a screen multiplexer that allows you to create multiple, concurrent command prompts in a single persistent terminal session. A lot of TMUX cheatsheets are extremely detailed, but this one is barebones.
These are the absolute basics, if you're looking to take TMUX further, see the links below.