I couldn't get this to work at first because there was one omission from this tutorial that stumped me and is going to stump others that are new to Linux projects like this, and that is the fact that you have to run the doorbell program to have it do anything. Thankfully I found another tutorial posted that was pretty much identical to this one but it added in the last step. You need to run "make run" (no quotes) in the "facial_recognition_doorbell" directory to start the magic. After doing that, it works great!
https://www.tomshardware.com/how-to/raspberry-pi-person-detecting-doorbell
I do have an issue though and that's how to power the wyze cam when you have no power outlets on your front porch and the wife is VERY much against drilling holes in the house.
I need a WiFi, battery operated, RTSP capable, 1080p or better camera that won't cost an arm, leg, fingers toes...you get the idea. Any suggestions? Thanks in advance.