for the first pic, any chance that is drywall ?
I wanted to hide my shelly EM and a cable splitter…i would die if I would see a cable in my house…so I keep most of the stuff inside walls or inside other appliances.
Obviously, if you are not an electrician you should get one to help you with the power connections…
in the second pic, i believe that is a IR remote…i tried to build one myself and install it on the ceiling powered from the light appliances connections…having it on the ceiling there will be 360 degrees of undisturbed LOS to any IR controlled device… then I tried to install it directly on a light appliance (I use cinema-like projectors because there is plenty of space o hide tech inside)…but from that, HOLODECK was born and since than I didn’t had time to work on the IR remote project