Features I want in door hardware:
* always unlocked from the inside
* always locked from the outside
* single keyhole on the outside
* momentary unlock with a key
* 12V DC momentarily unlock
* operates as normal when electronics are down
I'll wire it to the smarthome separately
I actually really don't like smartlock deadbolts, because it takes more power to physically move the deadbolt so the battery life is worse. I want it to be hardwired to mains power. (with battery backup and physical key secondary backup of course)