Every time I’ve checked over the last decade (including today), you can buy a mac mini that supports the latest macOS for under $250 on ebay. You can also test your app using github actions for free if your use case fits in the free tier.

There is no way to do this for an IBM z16, which is the kind of vendor lock in that people are saying Apple doesn’t have.

You can get a Mac Mini for $600-ish. Never get the base model though. (FYI, macOS is Unix.)

Thanks, guys.