I (Gary Grossman) am the original author of the Unix/CB code that was the foundation for the Vrave server that ran for many years on hyperreal.org. That code eventually found its way into an open source project called "telechat" maintained by Constantin Kaplinsky. The lineage of this code is explained on this page http://hyperreal.org/raves/vrave/:
If you're curious to inspect vrave's code, which is written in C, you can't; the vrave code that was running on Hyperreal is not in the public domain. However, you can view the source of a related server called Telechat. Vrave and Telechat are both based on a very old application called Unix-CB. The actual lineage went: Unix-CB -> Unix-CB w/modifications (the original Vrave) -> Vrave (when the Unix-CB author said it was OK to change the name) -> Hotwired Chat (with proprietary features) -> Telechat 1.0 (with Hotwired's features removed).
Back in 2000, I was curious as to whether my Unix/CB code had ended up in any kind of open source project, and through whatever search engine was state of the art at the time, I found this code for "telechat-ng."
I downloaded this code from http://www.ce.cctpu.edu.ru/telechat-ng/ in June 2000. Since that site is no longer up, I figured I would commit it to Github for posterity.
You might also be interested in a Python version of telechat: https://github.com/skyepn/telechat-py
For more information about Unix/CB and to see the original code, see the README.md at https://github.com/ggrossman/unix-cb
-Gary Grossman, 11/28/14