one:
     </p>
     <pre>Step 1: PIXIEDUST_HOME: /Users/USERNAME/pixiedust
    Keep y/n [y]? y</pre>
     <p>
      After you have configured PIXIEDUST_HOME you are prompted to specify the location of your Apache Spark install.
If you do not have Apache Spark installed, the installer downloads it for you:
     </p>
     <pre>Step 2: Please enter a SPARK_HOME location: /Users/USERNAME/spark
Directory /Users/USERNAME/spark does not contain a valid SPARK install
    Download Spark y/n [y]? y</pre>
     <p>
   