This is an interesting project that practically begs for the availability of smart, pluggable, physical control surfaces able to be reprogrammed using this tech

This is an interesting project that practically begs for the availability of smart, pluggable, physical control surfaces able to be reprogrammed using this technique. Integration with Nest-style devices seems like an obvious first choice for a consumer product. On maintenance: It seems like there'd be a bit of difficulty around managing a nest of "wires" between devices that are only visible under a 5" smartphone glass. So, you'd want something head-mounted (glasses), preferably with zoom. Microsoft HoloLens? That said, you'd definitely need an abstract schematic view to manage a dense network. It would be a really curious development if, in addition to plumbers and electricians, new construction required "reality editors" to wire up behaviors between such interfaces. "This won't do; your reality isn't up to code." Final thought: lose the digital tattoos and integrate Bluetooth/Zigby beacons for device advertisement. There's no way that those patterns are going to become fashionable. Or, use something else that's easy to print but is outside of our visual range.