I want to start a game using the system "Risus, the anything RPG." There isn't an option for this system when creating a game. I know there is freeform and homebrew, but it's not technically either of those. Would it be possible and easy to add Risus to the system list? Or should I just use freeform or homebrew? Or could you add an "other" option? That would work too. Maybe adding "Risus" and "Other" would be best.