Zoneminder is a pretty solid setup for IP security cameras, and the zmninja app is really nice too. I had tried it years ago but got back to it recently with some sketchy IP cameras. I just put them in their own VLAN, no Internet access, Zoneminder does motion detection and event recording, and so far I’m quite pleased with it.
If you csn, try to source a Coral AI USB TPU. Should cost around USD $60. Be patient, and backorder it. Don’t overpay.
I’m not saying seeedstore [sic]… But maybe they can scare them up sometimes.