Like the title suggest, the Saturn emulator from Cotton has been extracted and there is an injector now for your Saturn games.
Link: https://www.psx-place.com/threads/saturn-fpkg-convert-saturn-games-into-ps4-fpkgs.36031/
Link: https://www.psx-place.com/threads/saturn-fpkg-convert-saturn-games-into-ps4-fpkgs.36031/