According the the website www.cffringe.org :

CFFringe is the only CFML conference focused exclusively on open
source and fringe topics in CFML.

If you’re interested in getting into the open source CFML engines,
enhancing CFML engines through plugins or outright hacking, and
socializing with people doing cutting-edge things with CFML, this is the
place for you.

I encourage everyone to go to their website and register to stay tuned to what I think is a great idea for a conference!