I just retrofitted my basic hand crank mill with a 10mm nut, and drove it with a drill. It’s so much faster now, but I do wonder if there’s actual properly motorized versions of what I just did.
I did that with mine. But I found that I had to feather the drill a lot to keep the grind consistent.
Eventually I just went back to buying pre ground.
Edit: actually I think I have the pro version of yours. Ended up buying a steel ring to go between the mill to stabilize the central steel pin. Got a more consistent grind after it. But felt I needed to keep the drill at a lower speed.