
Over here in WestPondLand ('Mer'ca) I use X-10 which is nearly plug-n-play (set one rotary switch), available with wired or wireless controllers and uses no apps or other outside actors. I've never even had to change the house code because I'm probably the only one for a hundred miles (26399 Giraffes) that uses it.
I'd like to think some one makes a version for 208/220 volts seeing as it was invented in Scotland.
P.S. Big Brother isn't watching MY lightbulbs