<part xmlns="http://docbook.org/ns/docbook"
      xmlns:xlink="http://www.w3.org/1999/xlink"
      xmlns:xi="http://www.w3.org/2001/XInclude"
      version="5.0"
      xml:id="ch-installation">
 <title>Installation</title>
 <partintro xml:id="ch-installation-intro">
  <para>
   This section describes how to obtain, install, and configure NixOS for
   first-time use.
  </para>
 </partintro>
 <xi:include href="obtaining.xml" />
 <xi:include href="installing.xml" />
 <xi:include href="changing-config.xml" />
 <xi:include href="upgrading.xml" />
</part>
