skopeo from Virtualization:Appliances:Images project
Select Your Operating System
Add repository and install manually
For SLE 15 SP7 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Virtualization:Appliances:Images/SLE_15_SP7/Virtualization:Appliances:Images.repo zypper refresh zypper install skopeo