Start a sound role.

ansible/roles/sound/tasks/freebsd.yaml

@@ -0,0 +1,18 @@
+# - name: Install packages
+#   package:
+#     name:
+#       - foo
+#     state: present
+
+- name: Configure sysctls
+  when: sound_default_unit is defined
+  sysctl:
+    name: "{{ item.name }}"
+    value: "{{ item.value }}"
+    state: present
+    sysctl_file: "/etc/sysctl.conf.local"
+    # Disabling loading the sysctl because the unit does not exist when not docked.
+    reload: false
+  loop:
+    - name: hw.snd.default_unit
+      value: "{{ sound_default_unit }}"