From ad141efb474a02f14b5170e3d6606d06ffaa7d96 Mon Sep 17 00:00:00 2001
From: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
Date: Fri, 5 May 2023 15:51:58 +0100
Subject: [PATCH] Add `mdbook` to flake.nix (#15545)

---
 changelog.d/15532.misc | 2 +-
 changelog.d/15533.misc | 2 +-
 changelog.d/15545.misc | 1 +
 flake.nix              | 3 +++
 4 files changed, 6 insertions(+), 2 deletions(-)
 create mode 100644 changelog.d/15545.misc

diff --git a/changelog.d/15532.misc b/changelog.d/15532.misc
index e58273f297..1ee700f829 100644
--- a/changelog.d/15532.misc
+++ b/changelog.d/15532.misc
@@ -1 +1 @@
-Install the `xmlsec` package and switch back to the upstream [cachix/devenv](https://github.com/cachix/devenv) repo in the nix development environment.
+Install the `xmlsec` and `mdbook` packages and switch back to the upstream [cachix/devenv](https://github.com/cachix/devenv) repo in the nix development environment.
diff --git a/changelog.d/15533.misc b/changelog.d/15533.misc
index 8ed23526ef..1ee700f829 100644
--- a/changelog.d/15533.misc
+++ b/changelog.d/15533.misc
@@ -1 +1 @@
-Install the `xmlsec` package and switch back to the upstream [cachix/devenv](https://github.com/cachix/devenv) repo in the nix development environment.
\ No newline at end of file
+Install the `xmlsec` and `mdbook` packages and switch back to the upstream [cachix/devenv](https://github.com/cachix/devenv) repo in the nix development environment.
diff --git a/changelog.d/15545.misc b/changelog.d/15545.misc
new file mode 100644
index 0000000000..c7c0741f96
--- /dev/null
+++ b/changelog.d/15545.misc
@@ -0,0 +1 @@
+ Install the `xmlsec` and `mdbook` packages and switch back to the upstream [cachix/devenv](https://github.com/cachix/devenv) repo in the nix development environment.
\ No newline at end of file
diff --git a/flake.nix b/flake.nix
index 76243d0601..7351571e61 100644
--- a/flake.nix
+++ b/flake.nix
@@ -97,6 +97,9 @@
 
                   # Native dependencies for running Complement.
                   olm
+
+                  # For building the Synapse documentation website.
+                  mdbook
                 ];
 
                 # Install Python and manage a virtualenv with Poetry.