this article seems like it would be useful for creating better safe magnetic fusion bottles and preventing outside damage to them
"“Earnshaw’s Theorem” from 1842 limits the ability to shape magnetic fields. The team were able to calculate an innovative way to circumvent this theory in order to effectively cancel other magnetic fields which can confuse readings in experiments."
https://scitechdaily.com/physicists-circumvent-178-year-old-theory-to-cancel-magnetic-fields/