Ask HN: Does anybody know how to prevent Mac from sleeping?

Hey, do you guys know what's the best way to prevent my Mac from going to sleep ? I came across a few apps like InsomniaX etc. while searching, but they all seemed overkill.

Also found this one on PH today - https://www.producthunt.com/posts/nesleep , it's minimalistic and good, but is there anything better available ?