feat: optional state to autostart AudioVM

Not the default because it is unnecessary to autostart AudioVM as audio
is not necessary for everyone on every boot.

Fixes: https://github.com/ben-grande/qusal/issues/39

salt/sys-audio/README.md

@@ -41,6 +41,11 @@ sudo qubesctl --skip-dom0 --targets=dvm-sys-audio state.apply sys-audio.configur
 ```
 <!-- pkg:end:post-install -->
 
+If you want to autostart the AudioVM on boot, you may run:
+```sh
+sudo qubesctl state.apply sys-audio.autostart
+```
+
 If you need Bluetooth support, install the dependencies:
 ```sh
 sudo qubesctl --skip-dom0 --targets=tpl-sys-audio state.apply sys-audio.install-bluetooth

salt/sys-audio/autostart.sls

@@ -0,0 +1,11 @@
+{#
+SPDX-FileCopyrightText: 2024 Benjamin Grande M. S. <ben.grande.b@gmail.com>
+
+SPDX-License-Identifier: AGPL-3.0-or-later
+#}
+
+"{{ slsdotpath }}-autostart-audiovm":
+  qvm.vm:
+    - name: disp-{{ slsdotpath }}
+    - prefs:
+      - autostart: True

salt/sys-audio/autostart.top

@@ -0,0 +1,10 @@
+{#
+SPDX-FileCopyrightText: 2024 Benjamin Grande M. S. <ben.grande.b@gmail.com>
+
+SPDX-License-Identifier: AGPL-3.0-or-later
+#}
+
+base:
+  'dom0':
+    - match: nodegroup
+    - sys-audio.autostart