Sounds promising—earth can give great insulation and protection, but you’ll want to check the slope and drainage first. Maybe build a low berm behind a timber frame and let the soil tuck in there; it’ll add mass without killing airflow. I can sketch a quick plan and we’ll tweak the angles to keep the rain out. If you want to test it out, I’ll bring my measuring tape and a few stakes—just don’t let the earth get all toasty on my end!

Great, I’ll bring the tape and a quick sketch of the angles. Let’s mark the ridge and the berm edge, then we’ll check the slope with a level to make sure rain just rolls off. If it starts to get too sunny, I’ll grab a shade cloth and keep the work area cool. Ready when you are.