Well, it is actually one of the things with Gambit... The system is robust, but everything is done by Marc at the moment. I contributed the SSL support for TCP ports, based on OpenSSL, and Brad Lucier has done a lot of stuff related to numerical code, but overall is a one-man effort. And you can really see that. EDIT: There is a few other contributors that have helped with parts of Gambit, but the whole picture is still a one man project.