Hi there!
Just found into this hidden diamond! What a delight!
Running examples in Processing 4.4.10 I ran into several error messages of this type:
The package “miPhysics” does not exist. You might be missing a library.
... inspite it being present in Processing/libraries/ as you can verify in the attached screenshot.
The error occurs when fx running the HeavyMassChain example.
I believe miPhysics was developed in/for an earlier version of Processing. Has it been tested in Processing 4.4.10?
I am on Mac M1 pro, OSX Monterey 12.3
All the best Hans Peter