Here you can find documentation for the Gamut Compress tool. It's split up into a few documents so as to not be too overwhelming.
Here is specific documentation for each of the DCC implemenetations.
There are also a few nuke scripts preserved here which were used to present work to the Gamut Mapping VWG.
This is the Nuke script used in the presentation given for the ACES Gamut Mapping virtual working group on May 21st 2020.
Here are links to the meeting notes, and a recording of the session.
This nuke script does contain some nodes like the PlotChromaticity tool that rely on BlinkScript, which will not work in Nuke Non-Commercial. However, the same functionality can be achieved using a PlotPoints node, though with some performance penalties.
This nuke script contains exr images which are not in this git repository due to the size. You can download them here. These images have been sourced from acescentral and the ACES Gamut Mapping VWG dropbox. They have been resized to 2k and converted to ACES 2065-1 colorspace. These images are not a complete set but rather the ones I've found to be the most interesting.
If you download the image set to /images/aces_gamut_mapping_vwg_images_ap0/ the nuke script's relative paths should automatically find the images.
There is also the script from the 2020-05-28 meeting here.