diff --git a/index.html b/index.html
index 1e1ca6ba..2098e3ab 100644
--- a/index.html
+++ b/index.html
@@ -33,7 +33,10 @@ As a module within a <a class="link" href="https://github.com/LnL7/nix-darwin/"
 This allows the user profiles to be built together with the system
 when running <code class="literal">darwin-rebuild</code>. See <a class="xref" href="index.html#sec-install-nix-darwin-module" title="1.3. nix-darwin module">Section 1.3, “nix-darwin module”</a>
 for a description of this setup.
-</li></ol></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="sec-install-standalone"></a>1.1. Standalone installation</h2></div></div></div><div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem">
+</li></ol></div><div class="note"><h3 class="title">Note</h3><p>In this chapter we describe how to install Home Manager in the
+standard way using channels. If you prefer to use
+<a class="link" href="https://nixos.wiki/wiki/Flakes" target="_top">Nix Flakes</a> then please see the instructions in
+<a class="xref" href="index.html#ch-nix-flakes" title="Chapter 3. Nix Flakes">Chapter 3, <em>Nix Flakes</em></a>.</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="sec-install-standalone"></a>1.1. Standalone installation</h2></div></div></div><div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem">
 Make sure you have a working Nix installation. Specifically, make
 sure that your user is able to build and install Nix packages. For
 example, you should be able to successfully run a command like
@@ -241,8 +244,26 @@ then updating Home Manager is done by first updating the channel.
 You can then switch to the updated Home Manager environment.</p><pre class="programlisting console">$ nix-channel --update
 …
 unpacking channels...
-$ home-manager switch</pre></div></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="ch-nix-flakes"></a>Chapter 3. Nix Flakes</h1></div></div></div><p>Home Manager includes a <code class="literal">flake.nix</code> file for compatibility with <a class="link" href="https://nixos.wiki/wiki/Flakes" target="_top">Nix Flakes</a>.
-The support is still experimental and may change in backwards incompatible ways.</p><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="sec-flakes-prerequisites"></a>3.1. Prerequisites</h2></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+$ home-manager switch</pre></div></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="ch-nix-flakes"></a>Chapter 3. Nix Flakes</h1></div></div></div><p>Home Manager is compatible with <a class="link" href="https://nixos.wiki/wiki/Flakes" target="_top">Nix Flakes</a>. But
+please be aware that the support it is still experimental and may
+change in backwards incompatible ways.</p><p>Just like in the standard installation you can use the Home Manager
+flake in three ways:</p><div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem">
+Using the standalone <code class="literal">home-manager</code> tool. For platforms other than
+NixOS and Darwin, this is the only available choice. It is also
+recommended for people on NixOS or Darwin that want to manage their
+home directory independently of the system as a whole. See
+<a class="xref" href="index.html#sec-flakes-standalone" title="3.2. Standalone setup">Section 3.2, “Standalone setup”</a> for instructions on how to perform this
+installation.
+</li><li class="listitem">
+As a module within a NixOS system configuration. This allows the
+user profiles to be built together with the system when running
+<code class="literal">nixos-rebuild</code>. See <a class="xref" href="index.html#sec-flakes-nixos-module" title="3.3. NixOS module">Section 3.3, “NixOS module”</a> for a description of
+this setup.
+</li><li class="listitem">
+This allows the user profiles to be built together with the system
+when running <code class="literal">darwin-rebuild</code>. See <a class="xref" href="index.html#sec-flakes-nix-darwin-module" title="3.4. nix-darwin module">Section 3.4, “nix-darwin module”</a>
+for a description of this setup.
+</li></ol></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="sec-flakes-prerequisites"></a>3.1. Prerequisites</h2></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
 Install Nix 2.4 or later, or have it in <code class="literal">nix-shell</code>.
 </li><li class="listitem"><p class="simpara">
 Enable experimental features <code class="literal">nix-command</code> and <code class="literal">flakes</code>.