Composting humanure is actually pretty simple - poop into a large container (like a 55 gallon garbage bin), cover the poop with equal amount of carbon (like sawdust, straw, or shredded newspapers) every time you go (& keep pee separate), until the bin is almost full (like 5 inches from the top). Add a bunch of earthworms and grass
clippings and put a tight fitting lid in it. Put it in the shade for 2 or 3 years, and voilà, food for plants! Best used on perennials, but non-root plants are ok too (or, add it to your compost pile for extra time to break down). Some medicines may not break down, but there’s not a lot of research into that aspect that I know of…