charybdis
Scalable IRCv3.2 compliant chat daemon
Charybdis is the IRCv3 reference implementation. It has good documentation and ease of configuration. Charybdis is used on various networks either as itself, or as the basis of a customized IRC server implementation. One such customization is ircd-seven which powers Freenode, the largest IRC network in the world.
There is no official package available for openSUSE Leap 15.5Distributions
SUSE SLE-15-SP1
Unsupported distributions
The following distributions are not officially supported. Use these packages at your own risk.