Though, technically that leaves you more at risk of ransomeware or something that overwrites your data.
I rsync as well, but use snapshotting on the remote drives. So, a bad rsync would suck but shouldn’t really result in data loss. Ransomware on my local+remote server would of course be very bad…
Frigate is pretty good, too. I’ve only been running it for a few months but I’m very happy with it.