ratgdo32 disco with dry contact

I installed a ratgdo32 disco today on an old green button/billion code chamberlain gdo with the dry contact connection instructions. I verified the remote still works, and the wired button, which is now running through the ratgdo, works. I’m not having much luck with opening and closing via the ratgdo web interface or Home Assistant. I’m using the esphome firmware, but I can switch to mqtt if that makes things easier; I ran mqtt with Home Assistant in the past. Is there documentation on the limit switch setup somewhere? I haven’t connected that harness yet because I don’t know whether my gdo might have limit switches to connect it to, or whether I need to install those separately. If there’s a better place to ask, I can do that.