I thought the most interesting thing about tinygrad was that theoretically you could render a model all the way into hardware similar to Taalas (tinygrad might be where Taalas got the idea for all I know).
I could swear I filed a GitHub issue asking about the plans for that but I don't see it. Anyway I think he mentioned it when explaining tinygrad at one point and I have wondered why that hasn't got more attention.
As far as boxes, I wish that there were more MI355X available for normal hourly rental. Or any.