Note by @fastfinge

@jonathan859 @dhamlinmusic @lynessence @pixelate @quanin @mcourcel Yup! It doesn't change anything about the outside of your lock. In the case of switchbot, there's a keypad that goes on the outside of the door, but you can screw it in where ever you want, it connects via bluetooth. And it has a sensor so it stops working if it gets removed from the door. And even if the keypad gets unscrewed and taken off, you still can't get in that way.