Sounds like a good DIY option. Do you have to pay for their remote access service to monitor the cat remotely? (asking because I saw it on their pricing page, wondering whether required or optional)
I wish I could run Tailscale on it and use it everywhere with my tablets, laptops, etc. but I can't. You could probably port forward the web server, but you could have a premium experience with ZoneMinder.
I picked that camera out because I was looking at ZoneMinder's web page and thought Amcrest had a pretty good product line in terms of value. At my Uni they've installed a lot of Axis IP cameras which are quite a bit more expensive and are definitely tougher and higher performance.
