Ha, ha... I’ll be inside my Faraday cage while the rest of you rubes suffer!
You should poke an antenna out the side so people can still call you on your phone.
I built a 1500 sq ft faraday cage with 10 ft ceilings.
Poured my basement with 12 inch thick concrete walls this rebar in in welded in a faraday cage.
Poured 6 inch slab on top with rebar welded 16 “ on center with steel bridge decking and concrete mesh. Basically the first floor of my house I built like a bridge.
125,000 lbs of concrete and tons of rebar, in ground on three sides.
I put heating pipe in the concrete hooked up to an outdoor coal/woodburner and an R-40 Styrofoam insulation between concrete and ground.
None of this was out of fear of nuke attack. It was all for energy efficiency and strength to build my home on top of it.