Install gnome-system-tools on --standalone.

ansible/roles/desktop/tasks/main.yml

@@ -199,3 +199,9 @@
   copy:
       src: 10_fuss
       dest: /usr/share/gconf/defaults/10_fuss
+
+- name: install packages on standalone clients only
+  include: "{{includes}}/install-package-apt.yml"
+  with_items:
+      - gnome-system-tools
+  when: standalone is defined and standalone

debian/changelog

 fuss-client (10.0.15) UNRELEASED; urgency=medium
 
   * Check that /usr/share/gconf/defaults before writing into it.
+  * Install gnome-system-tools on --standalone.
 
  -- Elena Grandi <elena@truelite.it>  Tue, 30 Jun 2020 10:19:57 +0200