diff --git a/book/index.adoc b/book/index.adoc
index 951bf59..cf643c9 100644
--- a/book/index.adoc
+++ b/book/index.adoc
@@ -44,6 +44,8 @@ Symfony CLI.
 Is there an "official" way on php.net? https://www.php.net/manual/en/install.php
 ////
 
+Coming soon...
+
 [[different_versions]]
 = Different versions of PHP for different projects
 
@@ -60,21 +62,31 @@ Why do you need a full operating system?
 Why use something specific to a particular framework?
 ////
 
+Coming soon...
+
 [[what_nix]]
 = What is Nix?
 
 [[nix_language]]
 == The language
 
+Coming soon...
+
 [[nix_package_manager]]
 == The package manager
 
+Coming soon...
+
 [[nix_build_tool]]
 == The build tool
 
+Coming soon...
+
 [[nixos]]
 == The operating system (NixOS)
 
+Coming soon...
+
 [[nix_benefits]]
 = What are the benefits of using Nix?
 
@@ -89,10 +101,16 @@ Lots of available packages and operating system options.
 Ecosystem of tools - e.g. Home Manager.
 ////
 
+Coming soon...
+
 == Reproducible software, not just repeatable
 
+Coming soon...
+
 == Imperative vs. declarative
 
+Coming soon...
+
 [[dev_shells]]
 = What are dev shells?
 
@@ -138,6 +156,8 @@ If you're referencing a GitHub repository, you can use the shorter `github:usern
 [[what_flakes]]
 = What are Flakes?
 
+Coming soon...
+
 [[flake_templates]]
 == Flake templates
 
@@ -146,15 +166,23 @@ flake-utils
 flake-parts
 ////
 
+Coming soon...
+
 [[configuring_php]]
 = Configuring PHP with Nix
 
+Coming soon...
+
 [[managing_services]]
 = Managing services without NixOS
 
+Coming soon...
+
 [[building_derivations]]
 = Building derivations of PHP applications
 
+Coming soon...
+
 [[nix_composer]]
 = Nix vs. Composer
 
@@ -162,10 +190,16 @@ flake-parts
 composer2nix
 ////
 
+Coming soon...
+
 = Other usages for Nix
 
 ////
 Homelab/Server
 ////
 
+Coming soon...
+
 = Organising Nix configurations
+
+Coming soon...