Para openSUSE Tumbleweed execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/server:irc/openSUSE_Tumbleweed/server:irc.repo
zypper refresh
zypper install ergo
Para 15.6 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/server:irc/15.6/server:irc.repo
zypper refresh
zypper install ergo
Para 15.5 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/server:irc/15.5/server:irc.repo
zypper refresh
zypper install ergo