rubygem-agama-yast from systemsmanagement:Agama:Devel 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/systemsmanagement:Agama:Devel/openSUSE_Tumbleweed/systemsmanagement:Agama:Devel.repo zypper refresh zypper install rubygem-agama-yast