I use Blue Iris and a variety of cheap cameras that I've acquired over the years. Remote access is done via an IPSec VPN. I also use Home Assistant and variou

I use Blue Iris and a variety of cheap cameras that I've acquired over the years. Remote access is done via an IPSec VPN. I also use Home Assistant and various other devices to monitor other things in the house - temperature (since freezing water pipes is a concern), water level in the sump, etc. I don't do anything with alerting yet, but there are many ways to solve this. Having a next door neighbour who's retired and really good at spotting when things are out of the ordinary helps too.