Para 16.0 corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:Kenzy:OBS:Server:Unstable/16.0/home:Kenzy:OBS:Server:Unstable.repo
zypper refresh
zypper install build
Para 15.7 corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:Kenzy:OBS:Server:Unstable/15.7/home:Kenzy:OBS:Server:Unstable.repo
zypper refresh
zypper install build
Para 15.6 corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:Kenzy:OBS:Server:Unstable/15.6/home:Kenzy:OBS:Server:Unstable.repo
zypper refresh
zypper install build