What I'd like to see is a self-contained home door lock that can use NFC or RFID, and even that just because of the convenience value in not having to get keys

What I'd like to see is a self-contained home door lock that can use NFC or RFID, and even that just because of the convenience value in not having to get keys out with hands full of groceries. No Internet functionality, no Bluetooth or anything with a range over a couple of inches. Unfortunately, everything on the market that fills that want seems to be either completely unreliable, or hilariously insecure in either technological or physical senses.