And here you have a video of the final product in action:

If you look at the first picture you'll see the wall mounted big box where the brains of the thing live.. Then there are 3 modules that connect to that via custom usbc cables: A small scale built into the base of espresso machine, a larger black scale in front of the grinder with the cup on it, and the control panel module with keys and screen.

I still use yaydl, so looking forward to new version!