I pushed a display transform based on the above technique called rgbDT: Nuke | Resolve DCTL
It’s quite simple. This is the rendering code for the DCTL:
It uses the same tonescale model I posted about here.
The rendering primaries it uses are
red: (0.859, 0.264)
green: (0.137, 1.12)
blue: (0.085, -0.096)
white: (0.3127, 0.329)
Nothing scientific. Something I subjectively/aesthetically arrived at playing around with the above setup.