My house lock doesn't have an online mode. It has to be programmed by visiting physically, unlocking it, and then you have to stand there and touch it for a while in order to remove or activate a code. In other words, it only supports two features that a keyed lock doesn't:

1. a keyholder can't lose/forget the key 2. keys can be disabled without the expense of replacing the whole lock core

Since the purpose of a house lock is entirely a cultural/legal signal (you are allowed to come in / you do not have authority to come in) rather than security (if you are willing to damage the house, you can definitely enter), this is the perfect "smartness" for me.