I'll go with the flow and plug mine too, called acopw (get it, Accio Password, I'm so funny):

https://git.sr.ht/~jamesponddotco/acopw-cli

It can generate diceware passwords, random passwords, PINs, and UUIDv4.

It uses my own Go module for this, which comes with a list of words with over 23 thousand words:

https://git.sr.ht/~jamesponddotco/acopw-go