I saw on the site that the minimum requirement for Powerhouse is an M1 Pro/Max/Ultra.
I'm running an original MacMini M1 (16 gig) with a 10/8/6/6/3 Chamber ensemble inside Salzburg Festspeilhaus in Mir Pro3D and it's running beautifully. The Chamber ensemble itself is running on another machine in VEPro.
It seems to save about 10 ->15 % of my CPU usage when I switch to GPU POWER and the GPU History (in Activity Monitor) shows a doubling of GPU usage up to about 75% from about 30% when running on the CPU.
Whilst I appreciate that people may well want to run many more instruments simultaneously I though I'd at least post that it works on an 'entry' level machine and will suit me perfectly.
Congratulations to Dietz and the MIR team.
Visionary work.