Another option you may consider, if you’re already open to using Apple technology, is a MacBook. It would be like having a Mac mini with a built-in battery. I’m not sure if you already have batteries in your setup, but all of Apple’s current lineup of laptops are basically equally as performant as their desktop options right now (excluding the super high end stuff like the Mac Pro).
I hope no one at Apple takes this opinion seriously. The security of Apple hardware and software is one of its major selling points for me. The MINUSCULE amount of time it takes to click a button allowing permissions is very much worth the security and transparency it provides.