Plugged in all time,screen off, battery saver on 😊

It's just an app from the play store. I've looked into self-hosted open source things but didn't find much. The app I use is called "Alfred". It has the basic features. Motion sensor People sensor Saves the motion clips to the cloud Continuous playback Two-way talk Auto-low light Etc...

Currently using 4 android phones I got from friends/families "junk drawer" to use as a home security system.