Nice!! Great to hear! ๐งก
An old notebook, or tiny PC, with 8GB or more of RAM is the sweet spot IMO. And can be acquired quite cheap. Even Amazon warehouse deal, Costco, sam's club have deals on close out models. Maybe even ebay? I always spend a little more for a Samsung PRO SSD, just cause they've been super reliable for me, over years. There's value in reliability.
I've never recommended running on a PI, but I'm getting excited for raspberry PI 5, it sounds like they are 3x faster! So "well see"