The example 01_minimal_example.ipynb works perfectly with one minor addition

[glangsto]

With one very minor issue, the minimal example worked perfectly within
the datalab.noirlab.edu environment, with one minor addition.

Just before the "import cython" notebook entry, add this cell:
! pip install cygrid

After a few warnings, this completely installs cygrid
(alternately add a "try" statement around the import cygrid step)

Then each step in the minimal example worked fine and yielded the images in the demo documentation.

Thanks for your great work!
Glen