Bactilus

I've been trying set set up a multiplayer server for forge with no success. I can't work with the server have given up on. I think my only other option at this point is lan play, which I've also tried with no success. Nothing I've tried has worked, and I haven't found anything else online that helps. Does anyone know how to get lan play to work? I'm playing farming valley 1.10.2 on macOS 11 Big Sur Thanks