diff --git a/doc/manual/redirects.js b/doc/manual/redirects.js
index 36f53cbc8..3a86ae407 100644
--- a/doc/manual/redirects.js
+++ b/doc/manual/redirects.js
@@ -275,7 +275,6 @@ const redirects = {
     "ssec-multi-user": "installation/multi-user.html",
     "sec-obtaining-source": "installation/obtaining-source.html",
     "sec-prerequisites-source": "installation/prerequisites-source.html",
-    "ch-supported-platforms": "installation/supported-platforms.html",
     "ch-upgrading-nix": "installation/upgrading.html",
     "ch-about-nix": "introduction.html",
     "chap-introduction": "introduction.html",
diff --git a/doc/manual/source/SUMMARY.md.in b/doc/manual/source/SUMMARY.md.in
index b8b6ee763..fa14da872 100644
--- a/doc/manual/source/SUMMARY.md.in
+++ b/doc/manual/source/SUMMARY.md.in
@@ -3,7 +3,6 @@
 - [Introduction](introduction.md)
 - [Quick Start](quick-start.md)
 - [Installation](installation/index.md)
-  - [Supported Platforms](installation/supported-platforms.md)
   - [Installing Nix from Source](installation/installing-source.md)
     - [Prerequisites](installation/prerequisites-source.md)
     - [Obtaining a Source Distribution](installation/obtaining-source.md)
diff --git a/doc/manual/source/installation/index.md b/doc/manual/source/installation/index.md
index 1a1d4efdc..21aca146f 100644
--- a/doc/manual/source/installation/index.md
+++ b/doc/manual/source/installation/index.md
@@ -1,10 +1,10 @@
 # Installation
 
-We recommend that macOS users install Determinate Nix using [Determinate.pkg][pkg].
+We recommend that macOS users install Determinate Nix using our graphical installer, [Determinate.pkg][pkg].
 For Linux and Windows Subsystem for Linux (WSL) users:
 
 ```console
-$ curl --proto '=https' --tlsv1.2 -sSf -L https://install.determinate.systems/nix | \
+curl --proto '=https' --tlsv1.2 -sSf -L https://install.determinate.systems/nix | \
   sh -s -- install --determinate
 ```
 
diff --git a/doc/manual/source/installation/supported-platforms.md b/doc/manual/source/installation/supported-platforms.md
deleted file mode 100644
index 8ca3ce8d4..000000000
--- a/doc/manual/source/installation/supported-platforms.md
+++ /dev/null
@@ -1,7 +0,0 @@
-# Supported Platforms
-
-Nix is currently supported on the following platforms:
-
-  - Linux (i686, x86\_64, aarch64).
-
-  - macOS (x86\_64, aarch64).
diff --git a/doc/manual/source/introduction.md b/doc/manual/source/introduction.md
index 76489bc1b..a95e82740 100644
--- a/doc/manual/source/introduction.md
+++ b/doc/manual/source/introduction.md
@@ -1,7 +1,21 @@
-# Introduction
+# Determinate Nix
 
-Nix is a _purely functional package manager_.  This means that it
-treats packages like values in purely functional programming languages
+**Determinate Nix** is a downstream distribution of [Nix], a purely functional language, CLI tool, and package management system.
+It's available on Linux, macOS, and Windows Subsystem for Linux (WSL).
+
+## Installing
+
+We recommend that macOS users install Determinate Nix using our graphical installer, [Determinate.pkg][pkg].
+For Linux and Windows Subsystem for Linux (WSL) users:
+
+```console
+curl --proto '=https' --tlsv1.2 -sSf -L https://install.determinate.systems/nix | \
+  sh -s -- install --determinate
+```
+
+## How Nix works
+
+Nix treats packages like values in purely functional programming languages
 such as Haskell — they are built by functions that don’t have
 side-effects, and they never change after they have been built.  Nix
 stores packages in the _Nix store_, usually the directory
@@ -184,10 +198,14 @@ to build configuration files in `/etc`).  This means, among other
 things, that it is easy to roll back the entire configuration of the
 system to an earlier state.  Also, users can install software without
 root privileges.  For more information and downloads, see the [NixOS
-homepage](https://nixos.org/).
+homepage][nix].
 
 ## License
 
 Nix is released under the terms of the [GNU LGPLv2.1 or (at your
 option) any later
-version](http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html).
+version][license].
+
+[license]: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
+[pkg]: https://install.determinate.systems/determinate-pkg/stable/Universal
+[site]: https://nixos.org
diff --git a/doc/manual/source/quick-start.md b/doc/manual/source/quick-start.md
index 428063f97..ffb87aa72 100644
--- a/doc/manual/source/quick-start.md
+++ b/doc/manual/source/quick-start.md
@@ -4,7 +4,7 @@ This chapter is for impatient people who don't like reading documentation.
 For more in-depth information you are kindly referred to subsequent chapters.
 
 1. Install Nix.
-   We recommend that macOS users install Determinate Nix using [Determinate.pkg][pkg].
+   We recommend that macOS users install Determinate Nix using our graphical installer, [Determinate.pkg][pkg].
    For Linux and Windows Subsystem for Linux (WSL) users:
 
    ```console