For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/network:idm/openSUSE_Tumbleweed/network:idm.repo
zypper refresh
zypper install himmelblau
For openSUSE Factory ARM run the following as root:
zypper addrepo https://download.opensuse.org/repositories/network:idm/openSUSE_Factory_ARM/network:idm.repo
zypper refresh
zypper install himmelblau
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/network:idm/15.6/network:idm.repo
zypper refresh
zypper install himmelblau
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/network:idm/15.5/network:idm.repo
zypper refresh
zypper install himmelblau