Using Panel with PyVista on Qhub

[rsignell-usgs]

I tried using Panel with PyVista on Qhub and (not surprisingly) got the error:

This system does not appear to be running an xserver.
PyVista will likely segfault when rendering.

Try starting a virtual frame buffer with xvfb, or using
  ``pyvista.start_xvfb()``

  warnings.warn(

According to the PyVista Configuration Considerations it would be necessary to have Xvfb running on the system:

Xvfb :99 -screen 0 1024x768x24 > /dev/null 2>&1 &

Would that be possible a cloud-deployed Qhub endpoint?