Для openSUSE Tumbleweed запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:dl8fcl:afu/openSUSE_Tumbleweed/home:dl8fcl:afu.repo
zypper refresh
zypper install xdx
Для 16.0 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:dl8fcl:afu/16.0/home:dl8fcl:afu.repo
zypper refresh
zypper install xdx
Для 15.6 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:dl8fcl:afu/15.6/home:dl8fcl:afu.repo
zypper refresh
zypper install xdx