DisplayCAL from home:mixaill:branches:multimedia:color_management project
Select Your Operating System
Add repository and install manually
For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:mixaill:branches:multimedia:color_management/openSUSE_Tumbleweed/home:mixaill:branches:multimedia:color_management.repo zypper refresh zypper install DisplayCAL