As a Home Assistant geek, I would love to have a tablet built into the fridge door that I could 100% hack to display useful information and such. Currently I have an Android tablet on the wall that does this, but one on the door could be cool, especially if you could setup a place for virtual sticky notes that you could leave reminders and such for family members.

It’s not worth it for ad space though and I wouldn’t want it to be required for the fridge to operate either!