gitter (https://gitter.im/) is like chat for GitHub and IRC (https://en.wikipedia.org/wiki/Internet_Relay_Chat)
is a very old and efficient way to communicate with text. The usage of IRC is very powerful and the suitable tool if you
are a person who lives in the terminal. gitter has a nice user interface, it's easier to use (just sign with your
github credentials and you are ready) and saves your chat history.
Learn in this talk how you can take synchronize message either written in IRC or gitter - it doesn't matter which
tool you use.