diff --git a/roles/system/tasks/main.yml b/roles/system/tasks/main.yml
index a7bd6f7..b654709 100644
--- a/roles/system/tasks/main.yml
+++ b/roles/system/tasks/main.yml
@@ -1,3 +1,14 @@
+- name: Get Signal APT key
+  become: true
+  ansible.builtin.get_url:
+    url: https://updates.signal.org/desktop/apt/keys.asc
+    dest: /etc/apt/trusted.gpg.d/signal.asc
+
+- name: Install Signal APT repository
+  become: true
+  ansible.builtin.apt_repository:
+    repo: "deb [arch=amd64 signed-by=/etc/apt/trusted.gpg.d/signal.asc] https://updates.signal.org/desktop/apt xenial main"
+    state: present
 - name: Update repositories
   become: true
   apt:
@@ -21,6 +32,7 @@
       - libreoffice-impress
       - libreoffice-writer
       - gimp
+      - signal-desktop
       # Erlang stuff: https://github.com/asdf-vm/asdf-erlang#before-asdf-install
       - build-essential
       - autoconf