Yeah, but an N95/N100 box is not much bigger than a C64 power brick, either, which is both fascinating and frightening at the same time. :)

I think I can convert my spare Pi3 to a "boot to an emulator" system.

That wasn't really what I was talking about, rather the Raspberry Pi 400.

For the line of thought you replied, I would be more keen on a ESP32 instead.