I've been using Frigate for a long time and it's a really cool project that has been quite reliable. The configuration can be a little bit of a headache to learn, but it gets better with every release.
Viserion is new to me though, that looks really cool.
I've been running frigate for a while now and I find it's object detection has a higher than preferred false-positive rate.
For instance, it kept thinking the tree in my back yard is a person. I find it hilarious that it often assigns a higher likelihood the tree is a person than me! I've needed to put a mask over the tree as a last resort.
Assuming the tree is big you can set max object areas for person and then it will never happen again. I had to do this with some areas where shadows looked like people in the afternoons.
Beats me, I'm just getting into this now. I started with a Reolink NVR, but it's a piece of crap, so I'm looking for a better alternative.
It looks like either Frigate or Viseron will do what I want. I started setting up Frigate, but realized I should downgrade my Reolink Duo 3 to a Duo 2 before I go too far. The Duo 3 really doesn't offer much better image quality but forces you to use h265 and consumes a lot more bandwidth. Once I stabilize my camera setup I'll get back to setting up both Frigate and Viseron and see what performs better. I like that the pro upgrade of Frigate allows you to customize the model and may make use of that.
Viserion is new to me though, that looks really cool.