Off-grid passive solar + opencell concrete thermal systems — open hardware, permaculture computation, PoPW-verified
python offline-first open-hardware syncthing termux permaculture mesh-network rag carbon-negative stirling-engine local-llm ollama thermal-storage appropriate-technology proof-of-physical-work energy-sovereignty ferrocement passive-solar off-grid-energy opencell-cement
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Updated
Oct 2, 2026 - Python