Vendor the command set the menu and shell depend on

bin/blob-audio-availability

@@ -0,0 +1,54 @@
+#!/bin/bash
+
+# blob:summary=Print PulseAudio sink availability for the shell
+# blob:group=audio
+
+# A speaker tuning is a virtual sink in front of the real speakers. Both exist
+# in the graph, but selecting the physical one would only bypass the tuning, so
+# report it unavailable and keep it out of the output list.
+fronted="$(blob-audio-tuning fronted-sink 2>/dev/null || true)"
+
+pactl list sinks 2>/dev/null | awk -v fronted="$fronted" '
+  function emit_sink() {
+    if (name == "") return
+    if (fronted != "" && name == fronted) {
+      print name "\t0"
+      return
+    }
+    print name "\t" ((port_count == 0 || available) ? 1 : 0)
+  }
+
+  /^Sink #/ {
+    emit_sink()
+    name = ""
+    in_ports = 0
+    port_count = 0
+    available = 0
+    next
+  }
+
+  /^[[:space:]]*Name:/ {
+    name = $2
+    next
+  }
+
+  /^[[:space:]]*Ports:$/ {
+    in_ports = 1
+    next
+  }
+
+  in_ports && /^\tActive Port:/ {
+    in_ports = 0
+    next
+  }
+
+  in_ports && /^\t\t/ {
+    port_count++
+    if ($0 !~ /not available/) available = 1
+    next
+  }
+
+  END {
+    emit_sink()
+  }
+'