@lyse@lyse.isobeef.org The thing is, if it didn’t connect to the Internet on its own, it would be basically fine. You could make a device like this that communicates directly with an app on your phone. The app would spy on you, I’m sure, but just about all of the user-facing features I can see could be done in the app alone and the plate could be updated over Bluetooth or something. You could prevent people from incorrectly changing their registration year or plate number with cryptographic signatures from either Reviver or the DMV, which I hope they’re doing already.

Of course, on a phone, you have all those pesky permissions that people can turn off.