Thermomix is an (expensive) fancy machine that can do smoothies, risotto, chai, béchamel sauce, dough, baby food and many many other things. Often it reduces the amount of manual labor - and knowledge - required to make good dishes. Things like risotto instructions of “cook for 20 minutes; don’t let it boil; stir often” translates into a couple of button presses on Thermomix and a completion gong 20 minutes later. A person is free to do something else in between.
Thermomix is used in the kitchens of many restaurants. But I think it could also be used in a café as a visible part of the preparation. In fact, the visible part of the preparation could be part of the appeal and engagement.