tmp-dir">
    Build location
  </h2>

  <p>
    A core concept of Please is to try to isolate execution so we have a good
    concept of correctness for each action. To this end each rule builds in its
    own temporary directory (under <code class="code">plz-out/tmp</code>)
    containing only files defined as inputs to the rule.
  </p>

  <p>
    This means that you can't access any other files in your source tree from
    within the rule. If you want to have a look at what it looks like in there,
    <co