1. Download latest node.js version from <http://nodejs.org/> and build it with this instructions <https://github.com/joyent/node/wiki/Installation>. <br>
The Node.js version of your Linux repository might be too old/new. Please compile from the source to get sure you have the correct version. We support node.js version 0.4.*
If you're new to git and github, start here <http://learn.github.com/p/intro.html>.
If you're new to node.js, start with this video <http://youtu.be/jo_B4LTHi3I>.
If you wanna find out how Etherpads Easysync works (the library that makes it realy realtime), start with this [PDF](https://github.com/Pita/etherpad-lite/raw/master/doc/easysync/easysync-full-description.pdf) (complex, but worth reading it).
You know all this and just want to know how you can help? Look at the [TODO list](https://github.com/Pita/etherpad-lite/wiki/TODO).
You can join the [mailinglist](http://groups.google.com/group/etherpad-lite-dev) or go to the freenode irc channel [#etherpad-lite-dev](http://webchat.freenode.net?channels=#etherpad-lite-dev)
You also help the project, if you only host a ep-lite instance and share your experience with us.