Soldier fly larvae love humanure. You won't have a problem getting them to eat and grow on it. The problem will be getting them started in your system and finding a way to let the mature larvae exit the system for use.
I already had a commercial BioPod in Georgia when I started playing with giving them humanure, and I just opted for simplicity. I had a geriatric toilet seat with a
bucket and would put a deposit or two on top of a sheet of paper in the bucket, and simply dump this into the pod daily. I just fit it into my daily round of chores and it was no problem.
I have fantasized at times about a tweak on the concept of the moldering toilet....basically an elevated
outhouse with a large
compost bin beneath it. Envisioning an upper layer with BSF, complete with an angled exit ramp for self-harvesting, and then a lower layer, basically the BSF residur, harboring red compost earthworms, and some kind of access hatch to permit harvesting these. Makes me wonder if the residue left after these could still produce
mushrooms, or biogas, or ??....before finally going toward becoming a soil amendment.