EON is released under the GNU General Public License version 3.

A read-only copy of the code can be anonymously checked out of the subversion repository with the following command:

svn co http://theory.cm.utexas.edu/svn/eon


If you are a developer you should checkout the code like so:

svn co svn+ssh://username@theory.cm.utexas.edu/svn/eon


This will fetch a copy of the latest code to a local directory named eon. For more information on subversion read its online documentation.