For openSUSE Tumbleweed standard run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:appleonkel/openSUSE_Tumbleweed_standard/home:appleonkel.repo
zypper refresh
zypper install kluppe
For openSUSE Factory run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:appleonkel/openSUSE_Factory/home:appleonkel.repo
zypper refresh
zypper install kluppe
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:appleonkel/15.4/home:appleonkel.repo
zypper refresh
zypper install kluppe