I have a piezoelectric doorbell.

The bell part plugs directly into a wall socket. The button part is completely wireless and batteryless and is affixed near my front door.

Been working like clockwork for a decade to let me know when someone is at the door and I’m home.

If I’m not home, the postman or delivery driver leaves a note to go to the collection center for my package. If it’s a small package not requiring signature, they just leave it at the door or in the mailbox if it fits. None of that changes with a camera.

Why overcomplicate life.