title: Compressing files through vroom and piping to pixz
body: <p>I would like to write the <code>mtcars</code> data.frame to file using compression (<code>xz</code> in my case) using the vroom package and <code>pixz</code> but I can't get it to write a file. It complains that <code>pixz</code> does not exist even though it is installed locally.</p>
  <p>According to the vroom vignette (<a href="https://vroom.r-lib.org/articles/vroom.html" rel="nofollow noreferrer">https://vroom.r-lib.org/articles/vroom.html</a>): To compress using a single thread:</p>
  <pre><code>vroom_write(mtcars, &quot;mtcars.tsv.xz&quot;)
  </code></pre>
  <p>to compress using a parallel implementation and piping to pixz</p>
  <pre><code>vroom_write(mtcars, pipe(&quot;pixz &gt; mtcars.tsv.xz&quot;))
  
  
  sh: pixz: command not found
  </code></pre>