simply terminal lan chat using 0MQ.
$ npm i -g lan-chat $ lan-chat join --name <yourname> <start typing!> # note: you can only chat when more than one person joins :)
lan-chat is one of the outcomes from the 0MQ Master Class given at FOSDEM 2015 by Peter Hintjens. More projects can be found at: https://github.com/zmq-fosdem . Also, during the class we had the opportunity do discuss and evaluate the future of 0MQ, you can learn about it here: http://hintjens.com/blog:84