title: purpose of installing a perl module with apt-get instead of cpan
body: <p>While loading necessities into my <a href="https://github.com/dnschneid/crouton" rel="nofollow noreferrer">crouton</a>, <em>apt-get</em> recommended that I install <a href="http://packages.ubuntu.com/precise/libtemplate-perl" rel="nofollow noreferrer">libtemplate-perl</a>. This seemed a jolly idea, and I obeyed.</p>
  
  <p>Reading <a href="https://stackoverflow.com/questions/12127566/an-explanation-of-the-nginx-starman-dancer-web-stack">this answer</a>, I see a fellow traveler install <a href="http://plackperl.org/" rel="nofollow noreferrer">Plack</a> and <a href="http://search.cpan.org/~miyagawa/Starman-0.4009/lib/Starman.pm" rel="nofollow noreferrer">Starman</a> via <em>CPAN</em>, but then use <em>apt-get</em> to install <a href="http://www.perldancer.org/" rel="nofollow noreferrer">Dancer</a>.</p>
  
  <p>Minutes before reading said answer, I had installed <em>Dancer</em> via <em>CPAN</em>. And it had worked. It had worked real good!</p>
  
  <p>What happens differently when I install  a <em>CPAN</em> package via a non-<em>CPAN</em> package manager? Are there pitfalls I need to be wary of because my <em>libtemplate-perl</em> came from <em>apt-get</em>, or my <em>Dancer</em> came from <em>CPAN</em>?</p>