This concept design for a "microbial home" centered around a methane digester hub that feeds gas from your food into various appliances has a nice, bodgy, Rube Goldberg feel. We can call it methanepunk (not perfect, but better than "fartpunk").
The Microbial Home (via Beyond the Beyond)
The Microbial Home is viewed as a cyclical biological machine where wastes like sewage, effluent, garbage, wastewater are filtered, processed and recycled to be used as inputs for the various home functions. The project includes various aspects like a Bio Digester Island and Larder in the kitchen, Urban Beehive, Bio-light, Apothecary, Filtering Squatting Toilet and Paternoster Plastic Waste Up-cycler.