macOS environment variable help

I'm having issues trying to install the AGX OCIO profile for use in Blender / Fusion and would greatly appreciate some help.

I have successfully installed using homebrew but not sure what I am doing regarding the environment variable/s.

I have loacted the AGX files here:

`/Library/Application Support/OpenColorIO/AGX Colour`

here's the output when I do `opencolorio`