Для openSUSE Tumbleweed запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/isv:B1-Systems:Horde5:rolling/openSUSE_Tumbleweed/isv:B1-Systems:Horde5:rolling.repo
zypper refresh
zypper install horde5-gollem
Для openSUSE Leap 42.1 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/isv:B1-Systems:Horde5:rolling/openSUSE_Leap_42.1/isv:B1-Systems:Horde5:rolling.repo
zypper refresh
zypper install horde5-gollem
Для openSUSE Factory запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/isv:B1-Systems:Horde5:rolling/openSUSE_Factory/isv:B1-Systems:Horde5:rolling.repo
zypper refresh
zypper install horde5-gollem