Ok, so, admittedly, I haven't taken much time to read up on what I can do with Lemmy.
However, by the sound of it, I can set up an instance on whatever server I desire. From that instance I can moderate the content accordingly to how I want, including automation. Users can sign up on my Lemmy instance, or I can participate in other discussions from Lemmy users on other instances.
This also means I could make an app for my specific lemmy server, and tweak it as to how I see it. Or shit, I could keep myself as the only user ok that lemmy instance if I really wanted.
I take it all the stuff for lemme is right there on Github, so When the little one has down time I'll start digging in