I got some of those little Wyze cameras with a giftcard I got for Christmas.

Cloud app? No thanks. I'll just spend an evening figuring out how to install custom firmware and turn them into dumb RTSP streamers my edge server can ingest and multiplex and eventually record and run motion detection on.

Home automation is fun to play with if you're rolling your own. Also got some ESP32 monitoring gizmos I'm about ready to deploy around the house, running my code.