It looks like they have a word (or multiple) for each letter of the alphabet. So CD is "change drum", git clone is " guest ice traps space cap look [Ctrl right - autocomplete]", where you can read the commands from the first letters of each word.
Find it counter intuitive, like we have to memorize new constants that a programer defines... But having this with english words like next line or page down or page up, gamechanger.
Edit: the default 'phrases' are here: https://git.sr.ht/~geb/numen/tree/master/item/phrases