dub from openSUSE:Backports:SLE-15-SP4 project

Select Your Operating System

For step run the following as root:
zypper addrepo https://download.opensuse.org/repositories/openSUSE:Backports:SLE-15-SP4/step/openSUSE:Backports:SLE-15-SP4.repo
zypper refresh
zypper install dub
For standard run the following as root:
zypper addrepo https://download.opensuse.org/repositories/openSUSE:Backports:SLE-15-SP4/standard/openSUSE:Backports:SLE-15-SP4.repo
zypper refresh
zypper install dub