Migrate packages

pkgs/pulseaudio-popup/default.nix

@@ -0,0 +1,40 @@
+{
+  writeShellApplication,
+  pavucontrol,
+  jgmenu,
+  pulseaudio,
+}:
+
+writeShellApplication {
+  name = "pulseaudio-popup";
+
+  runtimeInputs = [
+    pavucontrol
+    jgmenu
+    pulseaudio
+  ];
+
+  # Do not insert e.g. pipefail
+  bashOptions = [ ];
+
+  text = ''
+    HDMI_SINK="alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.HiFi__hw_sofhdadsp_3__sink"
+    LAPTOP_SINK="alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.HiFi__hw_sofhdadsp__sink"
+
+    HDMI_ICON=$(pactl info | grep -q $HDMI_SINK && echo "checkbox")
+    LAPTOP_ICON=$(pactl info | grep -q $LAPTOP_SINK && echo "checkbox")
+
+    HDMI_VOLUME=$(pactl get-sink-volume $HDMI_SINK | head -n 1 | awk '{print $5}')
+    LAPTOP_VOLUME=$(pactl get-sink-volume $LAPTOP_SINK | head -n 1 | awk '{print $5}')
+
+    read -r -d "" CONF <<EOF
+    Open Pavucontrol,pavucontrol,pavucontrol
+
+    ^sep()
+    HDMI - $HDMI_VOLUME,pactl set-default-sink $HDMI_SINK,$HDMI_ICON
+    Laptop - $LAPTOP_VOLUME,pactl set-default-sink $LAPTOP_SINK,$LAPTOP_ICON
+    EOF
+
+    echo "$CONF" | jgmenu --simple --at-pointer
+  '';
+}