@bugsounet I have been idle in the Magic Mirror end of things and came across that MM ad by accident.
But I have been rehabilitating a 3d printer I bought and part of that has been installing some software, Klipper and Mainsail OS and something came up on their Discord which is potentially germane to Magic Mirror project.
One of the larger manufacturers of printers, Creality, came out with a sort of pre-configured tablet style device to run their printers. It has Klipper under the pretty cover and Klipper is open source, so according to one of the prime maintainers of Klipper, Creality is supposed to make their rendition of Klipper available based on the usage license but that is his battle to fight if he so desires.
The other point though is the part that I see as a somewhat double edged sword.
The version of Klipper in the Creality product is apparently an older buggy version of Klipper. The Klipper maintainer commented to the Discord at large that "good luck getting Creality to troubleshoot their own product which I can relate to, as I bought one of their products and there is no documentation or support from Creality. The same may apply to people that buy a Waveshare Magic Mirror. Who helps when a purchaser messes it up. Sam and the other helpful folks on the MM Forum, or Waveshare? Especially if it is an outdated version of MM they are selling.
If you want more people making Magic Mirrors you could facilitate that by getting Magic Mirror on to the Raspberry Pi Imager. I was flabbergasted to see DAKBOARD on the Imager as a downloadable Pi image. Flabergasted because I found MM by way of Dakboard which is the lamest MM Clone you could imagine for a monthly fee no less