I think the hub thing is where the local storage is? I don't know if they are just open RTSP things or not that you could use with any random NVR? I have unifi

I think the hub thing is where the local storage is? I don't know if they are just open RTSP things or not that you could use with any random NVR? I have unifi WiFi APs so have all the rest of the hub/controller anyway and trialled one camera but ultimately opted for Nest cameras instead.