Sure, let’s make the shelter a maze of both bricks and bits. I’ll hide a firewall in the sensors, so when the flood hits, the system glitches just enough to make you think it’s broken—like a puzzle missing a piece. And if you’re worried about heat, I’ll weave some thermal code into the walls; it’ll feel like a digital heat shield. Just remember: every layer we add, someone else will try to crack it, so keep your own backdoor locked.