Update!
He’s leaning a bit more than I would have ideally liked, but he seems happy.
I’m going to let him settle in a bit more before wiring branches.
(photo taken at night, window is open & sunny during the day, & he has a supplemental grow light)
Behold: My new child who is hopefully getting an emergency repotting today if the wire I ordered shows up.
The amount of absolute nonsense going on with his current pot is absurd.
See replies for details.