My first headcanon I like is that Kate/Kellyn’s mother was given a managerial job at Altru Inc. which helped them move to Almia. She obviously didn’t know anything about Team Dim Sun at the time so it came as a shock when she was suddenly fired.
My second headcanon is that Ponte started school in the Ranger Course but as he was about to finish he transferred. He continued to do this until Kate/Kellyn’s year when he finished the Operator course. He changed courses because he always felt ill-fitting for them. He felt too cowardly for a Ranger, too clumsy for a Mechanic, and too dull for an Operator.