No, the kit was for PS2, PS3 could run distributions intended for it without modifications, I think (maybe with some firmware changes), but those were by enthusiasts, while the PS2 Linux was provided by Sony.

I first got into programming via Basic on the ZX Spectrum, and I do worry how future generations will get into it now they’ve all gone back to phones instead of PCs.

Maybe the future generations will realize the difference between “can” and “should”, and there’ll arrive a niche for simpler PCs. I hope.