I find it dubious that a technical person claims to "just bought a new Mac mini to properly tinker with claws over the weekend". Like can they not just play with it on an old laptop lying around? A virtual machine? Or why did they not buy a Pi instead? Openclaw works with linux so not sure how this whole Mac mini cliche even started, obviously an overkill for something that only relays api calls.
Using a Mac Mini allows for better integration with existing Apple services. For many users, that just makes sense.
Your suspicions are correct, any extra machine works: 4GB Pi, virtual machine, or old laptop.
>technical person
There's the issue.
As a long time computer hobbyist who grew up in MSDOS and now resides in Linux I'm starting to wonder if I am not more connected to computing than a lot of people employed in the field.