OpenColorIO-tools from home:Simmphonie:darktable project
Select Your Operating System
Add repository and install manually
For openSUSE Slowroll run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:Simmphonie:darktable/openSUSE_Slowroll/home:Simmphonie:darktable.repo zypper refresh zypper install OpenColorIO-tools