that's perfect! i don't know how long koz has been connected to his dealer, but ede would've needed an underworld contact to get his foot in the door on terminus 7 - 8 years ago, so if that math makes sense, we could even say he was his original "in". if you're okay to lock in that detail about his heart, i love that too (especially if they've been running in the same circles for as long as above so there's some vague trust there) - he's not going to be able to escape the elevator pitch about potential "additional features"