I still use a 16GB MacBook Air for all my development and simulation work (4P+4E+8GPU cores). Even wrote my own Metal gpu code to offload part of the simulation workflow. Modded the MacBook Air with thermal pads and a homemade cooling pad made from cardboard and a usb fan to limit throttling. I’ve run simulations for over 24 hours and kept temps below 90C successfully. A newer Mac mini would be better, but those are so expensive now.