Seeing that I've created a second scriptmodule for another Sega 8 bit core, this time I've opted to do a PR for both:
I hope this one has a future.
Just in case, Gearsystem, the new core, is not better than SMSPlus-GX, but has SG-1000 support.
SMSPlus-GX looks interesting. Thank you for submitting a PR and keep submitting them and don't be discouraged! 😊