You never ever have to have the ianal disclaimer on the internet
IIRC, in the US, if you're a lawyer and someone "reasonably" believes you're giving them actual legal council, regardless of your intent, I'm pretty sure you're culpable (for lack of a better word).
For example, I was told by a judge that just if I help my wife fill out an appeal form, or if a real estate agent explains about a sale contract, that could be considered practicing law without a license. Frankly, that judge seemed like he was either an idiot or corrupt/biased based on some other stuff he did too.
At long last! I've been waiting for your emergence!
ESP8266 and ESP32 and the like are pretty tiny and have wifi and BT and a shedload of GPIOs and whatnot available. At £2 or less retail a pop! A "monster" system involving a Pi Zero costs about £5 retail.
My toaster is clockwork based or me and a long fork and a open hearth. My fridge/freezer on the other hand has a wifi link. It is on the SEWER VLAN which is for those devices that scare me somewhat and has a rather limited view of the world.