FYI it works on anything. I hosted it on a Raspberry Pi 1B (the very first one, it’s slow shite), and now I host it on an Orange Pi Zero. It’s not as slow, but it’s not too powerful either. Both devices are plenty for this project.
Recently, someone hosted it on a ESP32 or something. Not giving the link, simply because I don’t know which one is the genuine one. I use the project for close to a decade and it’s just works, mostly.