title: HipHop Runtime options explanations and resources
body: <p>There are several configuration options that can be found <a href="https://github.com/facebook/hhvm/wiki/Runtime-options" rel="nofollow">here</a>. But it looks heiroglyphs to me, not all, but I do not know what options are essential to keep a application running. I have a basic understanding on <code>.htaccess</code> when I am running a php application, like setting an <code>index.php</code> as an entry point, the <code>hhvm.hdf</code> same as <code>htaccess</code> where all things are optional.</p>
  
  <p>I have a hunch that the most important thing to configure here is the default file, <code>index.html, index.php, index.htm</code>, and the sources path?, not sure of the sources, bec. I don't know if the sources are default in current directory.</p>
  
  <p>If some could explain some of the important configuration, then it will a lot helpful.</p>
  
  <p><strong>UPDATE:</strong>
  Let say I am trying to create an <code>api</code>, what configuration should I have in the <code>hdf</code> file.
  The api make use of <code>index.php</code> as entry point and the other part <code>uri</code> will be parsed to have a decent <code>get</code> api</p>