PyVista is an ecosystem with many interrelated projects and repositories. The following are a list of projects the PyVista developers support:
3D plotting and mesh analysis through a streamlined interface for the Visualization Toolkit (VTK)
Python Wrapper for MeshFix: easily repair holes in PyVista surface meshes
A Python interface to the C++ TetGen library to generate tetrahedral meshes of any 3D polyhedral domains
Python implementation of surface mesh resampling algorithm ACVD