The one you linked to looks like a simple wrapper of caffeinate(8).
Edit: guessing that downvoters haven't encountered a lot of people suffering from addiction
Amphetamines have legitimate therapeutic uses, it's not only crippling addiction.
By the way, the word brew is also used for other things, eg. coffee or tea, and homebrew is a common metaphor for other things where amphetamine is unbiguously one thing.
Tasteless comment.
Maybe you should consider that a close family member had problems with this very recently before you call me tasteless. It is in fact really fucking stupid that some privileged Mac programmer, probably young and of limited life experience, thinks that is a cutesy name for his (yes I am assuming male) project and not the name of something ruining a lot of lives, probably thinks it's hilarious and clever. He has no taste. Opiates also have legit use. I wouldn't name a project after those either. There is a thing such as tone deafness.
I'm holding off installing Catalina on my main machine. And now they seem to focus on 10.16 instead.