Para openSUSE Tumbleweed execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/network:messaging:xmpp/openSUSE_Tumbleweed/network:messaging:xmpp.repo
zypper refresh
zypper install xmppc
Para openSUSE Slowroll execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/network:messaging:xmpp/openSUSE_Slowroll/network:messaging:xmpp.repo
zypper refresh
zypper install xmppc
Para 15.6 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/network:messaging:xmpp/15.6/network:messaging:xmpp.repo
zypper refresh
zypper install xmppc
Para 15.5 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/network:messaging:xmpp/15.5/network:messaging:xmpp.repo
zypper refresh
zypper install xmppc