I figure RISC32imv running at multiple megahertz would be plenty for decent realtime audio & graphics. Without any external audio & graphics cards! Though the V extension standardizes 128bit vectors, not 32bit like we minimally need.
Meanwhile early home computers are prized for how simple & understandable their OSs are.
Who can paint me a picture of bringing that appeal to risc32imv?
Abstractions might you want over an audio queue & framebuffer?
Programming language? Input? Simplifications?