I would get a Z-Wave daughter board and use Z-Wave devices for controlling the electronics. Z-wave devices aren't Internet connected so you only have to worry

I would get a Z-Wave daughter board and use Z-Wave devices for controlling the electronics. Z-wave devices aren't Internet connected so you only have to worry about locking down the Pi. Apparently there's already an open source project called Home Assistant for this purpose. https://home-assistant.io/ https://home-assistant.io/