When it comes down to it, the processing of human excrement is somethiing worth considering. Although dumping in into a sewage system or a septic tank is the official method of planning and zoning boards, it is far better to handle this situation yourself, especially off-grid.

I found this structure of particular interest, especially using a larger bin that you trade out for a few years to breakdown before spreading in non-eaten garden places. You measure some activities in decades!

https://permies.com/w/willow-feeder

I have done a bit of research on vermiculture (worm farming) and I found this alongside information about human waste:

https://www.redwormcomposting.com/worm-composting/human-waste-vermicomposting/

I don't feel the need to do a LOT of research as this seems enough answer to move forward.