I had the same plans, and then came to the same revelation that not only would I be violating a bunch of rules, but I might void insurance and take on liability

I had the same plans, and then came to the same revelation that not only would I be violating a bunch of rules, but I might void insurance and take on liability for a whole bunch of houses in case of fire, even if my shoddy work didn't start it. As a compromise, I got a bunch of radio controlled plug-sockets, and started on hooking up a 433mhz transmitter to an esp8266, and....... well the transmitter stopped working once I soldered everything down and I then got distracted by other shiny things. Been meaning to go back to it ever since.