What's wrong with their NVRs? I have one connected to some Reolink cameras (though not yet the full house-surrounding setup I have planned) and it seems fine so far.
Reolink with Synology NAS using their native Surveillance app. All stored locally, no cloud.
One issue with Reolink I haven’t solved is that it is unable to detect approaching cars in the night. Departing cars work fine though. Otherwise no complaints.
Reolink cameras are pretty good for what they are. Just dont buy into their NVR solution...
Frigate also has some interesting applications to go along with it, see: https://github.com/mmcc-xx/WhosAtMyFeeder
I also have YOLO on my to do list for the home cameras.