I suppose it is inevitable, given the laws of possibilities, that there will be a story that has a character named 'Jak' (or Jack as it is in the book) and that he will be a repairman of whatever, be it household appliances or 'surface drones'. (Once again a departure from the book, where he is a scavenger).
I don't think it is a coincidence (when it comes to RJ, there aren't any
) and I'm pushing for a rip-off, given the changes from the source material.