Quick heads' up to everyone. Go check out neifile7's glorious Jack backstory Calypso, which traces Jack's adventures after the Doctor abandons Jack on the gamestation and he crashlands into 19th c. Cardiff. It fills in oh-so-many canonical gaps that you probably never realised you were dying to see expanded upon, and captures Jack's voice in a way that very few writers in fandom can.
It's an incredibly hot, erudite, clever & well-written story which I had the pleasure of beta'ing, so go & get reading.
More mcshep_match recs to come-- go get guessing the authors/artists for some lovely prizes, guys!