According to the metadata in the gem, Rubicon is from 2012. We must download the gem from its site, which is weird, and I couldn&#x27;t find it on github. I assume it is a dead project.<p>Derailer&#x27;s last commit is from Jan 29 2014 so it&#x27;s another dead project. Too bad because it could be interesting. However, did anybody understand what to do with its output? Example: how do I use <a href="http:&#x2F;&#x2F;people.csail.mit.edu&#x2F;jnear&#x2F;derailer&#x2F;example1&#x2F;" rel="nofollow">http:&#x2F;&#x2F;people.csail.mit.edu&#x2F;jnear&#x2F;derailer&#x2F;example1&#x2F;</a> to assess the security of the application?