Wonder if this would work for Desolation after all it works for Reborn
Edit: It works partially, like you can load the menu of how many followers you want following you but it doesn't load the sprites for the followers and says something along the lines of your pokémon has been returned to it's pokeball.
It should work fine, I believe this mod was made with v13.5 in mind and won't update until after v14 is released. I think you only have to worry about corrupting your game if you have mods like Rejuvenation - LAWDs or the Overseer files regional forms demo mod installed.
I remember using a follower mod for this game before v13.5 came out and really enjoyed it, am glad to see a new one for this, nice work.
EDIT: I put this in my Rejuvenation LAWDs mod, mod that adds new regionals and gen 9 Pokémon, and it works.
Nice to know that the next version of Pokemon: Rejuvenation is getting close, I loved this game more than Desolation and Reborn, though Desolation is my second favorite game with Reborn being third.
Looking forward to this release, whenever it comes out.