In your description I saw you thought the magnets were a bit too strong and it gave me an idea-

Why not enclose them in the print? Maybe take sheets of paper and layer them up until the magnet strength is how you like, measure that with calipers, and use that to determine how many print layers you’d need to make solid over the current magnet insets.

Have you ever checked out OrangePi? I was considering them before picking up a jetson nano. It’s crazy to think that a rpi4b is going for the same price from resellers as a jetson with cuda and tenserflow support.