[EricE]

The Ubiquity doorbell also does local person and package detection in addition to standard motion detection. Indeed, it has a second camera aimed down specifically to detect packages: https://ui.com/us/en/camera-security/special-devices

You also need a Protect NVR to record video, manage the camera and provide notifications - the Cloud Key Plus works perfectly for up to a dozen or so cameras (uses standard laptop hard drive) - but they have a variety of devices that can run Protect from the UDM Pro (also will serve as a router/firewall) to larger dedicated Protect NVRs with four or seven disks depending on how much storage you want.

It can be a bit pricy for just a doorbell camera, but if you add a couple of other cameras then the value gets significantly better. Cloud is optional other than being required for initial configuration and is used for notifications, remote access and remote administration.