Would be interested as well! Maybe even make a way to control your shopping list, this way you can automate multiple input sources (Ghome, Notes, Phone etc.) into your shoppinglist.
Also very Interested. Unfortunately picnic doesn’t expose their API, I’ve had multiple chats with them about this topic. I think until they allow API access this will not be possible.
EDIT: I see now there’s homey integration, so it might be possible!