Vedui had this amazing theory, what if we hosted the XML files server side, and asset files client side? That way, when you join a server, mods would be enabled for the player. But upon starting your own SP map, all mods would be disabled.
Well, with a little tinker, we did just that. Video showcasing this effect on both single player game, and server hosted game.
Thankyou Vedui for this amazing theory we confirmed!
Vedui: / @vedui42