title: usage of erlang heart
body: <p>How should heart be used to keep an application alive?</p>
  
  <p>Lets say I have an application X, will it be monitored if I just call something like: </p>
  
  <pre><code>erl -boot X -heart -env HEART_BEAT_TIMEOUT 30 -detached
  </code></pre>
  
  <p>?</p>