Sounds wild, but totally doable—let’s stack bark like a natural chimney, grow lichens on the walls for extra insulation, and toss a shallow compost pit at the base to keep heat flowing. We’ll need a simple frame, a tarp, and a “living” thermostat: the more compost, the warmer. I’ll grab the bark, you can bring the lichens, and we’ll call it the “breathing hut” experiment. Ready to get our hands dirty?