Yes! Have considered those flies. Our composts have a lot of different bugs in them, none of which I have introduced. Certainly considering a bug farm. We have an abundance of baby snails and slaters here, which the covey smash. I also have a bug zapper which provides them with light to extend the winter hours so they lay, and also freshly fried snacks. Haha. I am basically always hunting bug for them. Would be cool to have larval abundance for sure! Might investigate a local supplier and see what the ecosystem integration situation is where I am. 😁