That... pretty much already exists, in the form of Home Assistant + Zigbee and/or Thread? Though that's still wireless, and I haven't seen any focus on trying t

That... pretty much already exists, in the form of Home Assistant + Zigbee and/or Thread? Though that's still wireless, and I haven't seen any focus on trying to connect everything with wires (not something I'd be keen on, personally, I'm quite happy with the wireless protocols).