I'd love to find more info on this but from what I can find it seems to be making webpages that look like those product, and seemingly can "run python" or "emul

I'd love to find more info on this but from what I can find it seems to be making webpages that look like those product, and seemingly can "run python" or "emulate a game" but writing something that, based on all of GitHub, can approximate an iPhone or emulator in javscript/css/HTML is very very very different than writing an OS.