I have tentative plans to make my own smart lock by way of electric motor and commercial deadbolts with an RF scanner and a back up battery for emergency. It won’t be amazingly secure in a tech way, but I figure the combination of novelty and DIY should make it reliable.

That said, I gotta be that guy and remind everyone that all locks are security theatre and are not going to protect your house from the persistent or prepared. Your best defense is a combination of foresight and social engineering.