What kind of ARM machine should I buy if I want to self-host an ARM server? My not-that-recent look at the market shows everyone kind of doing their own thing; Amazon makes Amazon's ARM servers, Apple makes Apple's ARM chips, etc. As some random guy who wants to test on ARM, it's annoying. Maybe things have improved recently, though?

(I'm guessing self-host realistically means "get a VM on AWS", which is probably fine for CI if you already use AWS. A little annoying to have another monthly bill to pay if you don't, though.)