I’ve got a black soldier fly bin and I feed the fresh grubs to my chickens. Started it two years ago and it’s minimal effort on my part. Goes dormant in winter and seems to repopulate on it’s own when I feed it in the late spring when weather warms up. If you’re looking for a year round project then maybe look into the mealworms for indoors.
I don’t put roadkill into it but do put any rats and moles I catch in my traps. I also put scraps like meat products, fat trimmings, refrigerator clean out stuff, etc - basically the stuff that I don’t put in a compost pile or feed the chickens, or want in my trash before trash day, lol.
In the beginning I’ll get some fly maggots but then the BSF take over and kick out any competition. You can’t constantly feed the bin unless there are enough of them, only feed what they’ll consume fairly quickly in a few days and not have time to rot and smell - although it does have some odor. I have a big enough yard it’s not near my house and I’d say it doesn’t smell any more than the average chicken coop would.
I keep it in a plastic storage bin next to my compost pile and use compost as bedding inside; the BSF compost gets mixed with the regular pile at the end of the season. It self harvests by grubs climbing the PVC pipe ramps and they fall into a container. When chickens see me go anywhere near that bin they come running and will almost fight one another for some treats. Literally never seen them want any treats more than fresh BSF grubs.
As disgusting as this experiment has been, it’s pretty fun.
BSF are raised in other countries to consume waste streams quite effectively - even in a large scale setups too. They’ll consume manures but it’s not recommended to feed the grubs to the same animals the waste comes from - so no raising them on chicken poop and then the grubs back to the chickens. I believe that’s how you get bad stuff like how mad cow disease started.
Good luck
