i read this neat thing about using biowaste to generate your own propane. with these plans i found there’s only like a 15% risk of blowing yourself up and that’s IF you have recent hazardous materials handling training (which i don’t, so like let’s up that to 45% for me) and they advise having a fair bit of land to build a small swamp on for some weird reason, but i can send you some diagrams if y’all want.