Multichannel color profiles
To convert RGB input images to N-channel spot colour output for printing either using spot litho or Risograph printing.
In Mac OS: copy profiles into the “/Library/ColorSync/Profiles” folder or the “/Users/[username]/Library/ColorSync/Profiles” folder.
References
Swiss colour profile ‘foundry’ Color Library – https://colorlibrary.ch/how-to-install/
Risolve Studio https://risolvestudio.com/collections/riso-color-profiles
Open source https://colorshift.theretherenow.com/profiles