The whole point was that you’d be getting ramdom puctures just-in-time, at a leisurely rate suitable for background image rotation, without other interaction.
I think you’re just missing the point, which most certainly isn’t buying compute to generate zillions of images ahead-of-time and then replaying them at a rate of one every half hour or whatever. Anyone can do this. The idea of having a tiny instance of SD crammed on a tiny computer taking its time to compute the images just-in-time (so you don’t even in theory don’t know what you’re going to get next) is simply much more fun and original, never mind way more aligned with the hacker ethos.
If you want to say the zero2-w is what's making it then sure.
> Besides, a 4090 costs more than a car.
They only cost ~0.70USD for 1 hr. In fact you could put this on an A100 for 1$/hr. Renting would make the most sense for this type of thing.