nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpq80d8r7djdr4y9mypytzss2lgtr62584q42g5wwgc3xyym855k63qny4rgp (nprofile…4rgp)
This was all based on Schwarzschild”s second metric, which does indeed respect the shell theorem.
https://www.gregegan.net/SCIENCE/Borehole/Borehole.html#GRRO