[geoka9]

Don't forget wifi connectivity...

[lmohseni]

A web based admin interface might be handy as well...

[sitkack]

Ohhh, with automatic firmware updates! Maybe it syncs over Bluetooth, or pretends to be a car infotainment system to keep a copy of your mobile contacts.

The complexity probably warrants some sort of embedded microservice arch, like microK8S.