Thanks for the suggestions and the support!
I really like the idea of a '4GOAL COLLECTION' or 'DX' version to unify everything and remove redundancies. I’ve actually been experimenting with loaders to group all the versions into a single menu, but I haven't achieved a stable result yet.
My initial focus was providing standalone .PRG files (inspired by the Oneload64 project) for quick and easy loading. While I know it's possible to bundle them into a single file or a .D64 with a menu, my available time for development is quite limited right now.
It is definitely on my 'to-do' list, but I don't have a specific release date yet. I'm still looking for the best technical solution to handle the memory and the transitions between the modules, but I’ll find a way!
Thanks again for the feedback and for helping the project grow. Cheers!