Frigate, Coral TPU, and Tailscale/Headscale form a reasonable local solution for those who want to explore setting up their own system. NTFY and Node-Red, with

Frigate, Coral TPU, and Tailscale/Headscale form a reasonable local solution for those who want to explore setting up their own system. NTFY and Node-Red, with a dash of MQTT, can be bolted on for remote alerting.