BepInEx has a plugin for loading SpaceWarp mods: https://spacedock.info/mod/3265/SpaceWarp loader for BepInEx
I will admit, though, that there is a lot of confusion, and the installation for using both is undocumented / not easy to understand.
I suggest people take a look at Luna Multiplayer's implementation of warp "subspaces" in KSP 1 - a bit like each player has their own timelines they can warp out of and merge together