A simple chat protocol I and some friends at Lysator developed.
Since the inital developements there have been at least
two 'pure' servers, and a some expanded ones. The currently
recommended version is socktroll.py (in the package socktroll-py)
(requires blamlib)
Socktroll-py also contains an updated version of the GTK client.
For simple client hacking see blamlib
Releases: