Not really. Modding is allowed, but as soon as you start making money over a game you don’t own I expect Rocktar is gonna cease an desist him into oblivion. Yeah, it’s his code… but without the game is useless. Donations are a thing, selling something you don’t own the right to is another. Be aware, I don’t want anything to do with that mod and I don’t even know whst it is tbh