Edited for a name change in the boss they both write to, because that way I could tie him back to what will become "Upper-Floor-Miller" who is one of the side characters in "End of a Road Trip" who makes his first appearance in the chapter "The King, The Queen, The Knight, And The Pawn" there, but it is clear that he and Lix go a long way back.
Not sure if he is really the same man, but I love playing with all the canon I invented over time...
https://archiveofourown.org/works/31042175/chapters/88189615