pyeight/slimerancher2multiplayer ? reverse-engineered prompt

Build me a Slime Rancher 2 multiplayer mod that lets one player host a save and other players join it from a simple multiplayer menu on the main screen.

I want the mod to handle the core syncing needed for normal co op play, like player movement, animations, sound, slimes, world items, resource nodes, landplots, gadgets, drones, currency, map icons, weather, time, teleporters, and NPC conversations. It should also have a basic first time setup screen and in game mod settings, with options for player name, name color, cheats, streamer mode, host port, and a few debug toggles.

Please make it work with the usual mod loader setup for this game, and include clear warnings about backing up saves since the host save is the one everyone plays on. If you need current game or mod loader details, look up the latest docs online first.