If you build it into all of the exterior facing walls, you can use a cell range extender to tunnel a data connection inside your house, and also similarly with a Wi-Fi AP connected via Ethernet, in the event that you want Wi-Fi signal outside your home as well.
Actually, when I build my next house in 5-10 years I think I might do exactly this
Not gunna lie, i'm looking at building/remodelling a home in the next few years, and i'm seriously considering foiling the walls of some rooms just to build a faraday cage.
