An alternative is teaching people how to make simple chains of byproducts. Maybe even incentivizing doing so. I make a shot of Ristretto every morning from fre

An alternative is teaching people how to make simple chains of byproducts. Maybe even incentivizing doing so. I make a shot of Ristretto every morning from fresh beans in a hopper that's sealed by double layer gaskets. From that I get pucks of coffee grinds which I feed to my worms. 3 months layer with some nitrogen sources I get fresh compost for my plants. I have some ornamental plants, but the ones in my greenhouse grow things like tomatoes, lemons, basil, thyme, etc... To be frank, you don't even need a greenhouse for most of these; adding light and water to counter top plants will often do.