We have talked via email also.
ColourSpace is a Windows app.
ColourSpace will operate on Mac using full Windows emulation, such as via Parallels, VMware Fusion with the latest VMware Tools, or UTM with Mesa 3D graphics library.
VMware Fusion Pro is now available for free (for Personal Use).
The VM software will install Windows 11, and you can also have Windows on your Mac, install Windows apps, etc.
You will need a license for Windows 11 Professional (Windows 11 Home is not supporting VM)
I have bought a Windows 11 Pro license from that store:
https://www.keysfan.com/windows-11-professional-key.html