Per openSUSE Tumbleweed eseguire quanto segue come root:
zypper addrepo https://download.opensuse.org/repositories/server:irc/openSUSE_Tumbleweed/server:irc.repo
zypper refresh
zypper install irssi
Per 16.0 eseguire quanto segue come root:
zypper addrepo https://download.opensuse.org/repositories/server:irc/16.0/server:irc.repo
zypper refresh
zypper install irssi
Per 15.6 eseguire quanto segue come root:
zypper addrepo https://download.opensuse.org/repositories/server:irc/15.6/server:irc.repo
zypper refresh
zypper install irssi