I am considering getting the book printed. I see Cepheus and Cepheus Light and several other (genre?) books.
@ExileInParadise, what is the difference? Or what to start with?
Samardan / Jason Kemp adapted the Mongoose SRD into Cepheus Engine - and that is what I would start with for greatest compatibility with Classic Traveller, Mongoose v1, and to a degree T5.
Cepheus Light, FTL, Quantum, Atom, etc are all streamline and adaptations etc that are each aimed to a particular type of sci-fi gaming.