who knows what the future will bring… last week, I didn’t even know I was releasing Orac on the Nebulae … but when I see a technical challenge, sometimes I cannot resist 
that said…why not get a Raspberry PI3 to run Orac 2.0 ?
its 40$, add a soundcard (I highly recommend the Blokas PiSound), and your ready to go… (*)
the thing is, the rPI3 is great, but it’s still fairly limited in power compared to a desktop/laptop,
so it actually is useful to have multiple boxes - also gives you things like separate outputs, and additional midi IO, which is always handy.
(wait till you see the Raspberry PI Orac video, I hope you will be really surprised how easy its going to be to get up n’ running , even for non-techies!)
or there’s the Organelle, or Eurorack - thats partly the reason Im going down this route, one box how ever great rarely fits all use-cases or budgets - so choice/variety is good 
(*) Im pretty sure you can interface the monome grid/arc to the rPI, if you want.