diff --git a/README.org b/README.org
index d520504..c68dbb1 100644
--- a/README.org
+++ b/README.org
@@ -1,4 +1,4 @@
-[[./example-gifs/init-example.gif]]
+[[./doc/images/init-example.gif]]
 
 * Install from tap
 ** Add Tap
@@ -10,3 +10,11 @@ brew tap MSG/apps https://forge.superkamiguru.org/MSG/homebrew-apps
 #+begin_src sh
 brew install msg-desktop
 #+end_src
+
+** Security & Privacy
+The first time you run the app, you will need to allow it to run in the Security
+& Privacy settings of your Mac. This is because the app is not signed by Apple.
+You can do this by going to System Preferences > Security & Privacy > General
+and clicking "Open Anyway" next to the message about the app being blocked.
+
+[[./doc/images/macos15.3.2-security.png]]
diff --git a/doc/.DS_Store b/doc/.DS_Store
new file mode 100644
index 0000000..5008ddf
Binary files /dev/null and b/doc/.DS_Store differ
diff --git a/example-gifs/init-example.gif b/doc/images/init-example.gif
similarity index 100%
rename from example-gifs/init-example.gif
rename to doc/images/init-example.gif
diff --git a/doc/images/macos15.3.2-security.png b/doc/images/macos15.3.2-security.png
new file mode 100644
index 0000000..923b4e8
Binary files /dev/null and b/doc/images/macos15.3.2-security.png differ