diff --git a/.config/sway/config b/.config/sway/config
index eaa5fff..e3b0d87 100644
--- a/.config/sway/config
+++ b/.config/sway/config
@@ -639,18 +639,31 @@ bindsym XF86Sleep exec "systemctl suspend -i"
 #
 bindsym
 {
-	--locked XF86AudioRaiseVolume exec pactl set-sink-volume @DEFAULT_SINK@ +5%
-	--locked XF86AudioLowerVolume exec pactl set-sink-volume @DEFAULT_SINK@ -5%
-	--locked XF86AudioMute exec pactl set-sink-mute @DEFAULT_SINK@ toggle;exec notify-send -t3600 'audio muted'
-	--locked XF86AudioMicMute exec pactl set-source-mute @DEFAULT_SOURCE@ toggle;exec notify-send -t 3600 'mic mute toggle'
-	--locked XF86MonBrightnessUp exec light -A 5
-	--locked XF86MonBrightnessDown exec light -U 5
+	# depends on avizo-service
+	--locked XF86AudioRaiseVolume exec volumectl -u up
+	--locked XF86AudioLowerVolume exec volumectl -u down
+	--locked XF86AudioMute exec volumectl toggle-mute
+	--locked XF86AudioMicMute exec volumectl -m toggle-mute
+	--locked XF86MonBrightnessUp exec lightctl up
+	--locked XF86MonBrightnessDown exec lightctl down
+
 	--locked $mod+Ctrl+p exec playerctl play-pause
 	--locked $mod+Ctrl+n exec playerctl next
 	--locked $mod+Ctrl+Shift+n exec playerctl previous
 	--locked XF86AudioPlay exec playerctl play-pause
 	--locked XF86AudioNext exec playerctl next
 	--locked XF86AudioPrev exec playerctl previous
+
+	### --locked XF86AudioRaiseVolume exec pactl set-sink-volume @DEFAULT_SINK@ +5%
+	### --locked XF86AudioLowerVolume exec pactl set-sink-volume @DEFAULT_SINK@ -5%
+	### --locked XF86AudioMute exec pactl set-sink-mute @DEFAULT_SINK@ toggle;exec notify-send -t3600 'audio muted'
+	### # --locked XF86AudioMute exec amixer set Master toggle
+	### # --locked XF86AudioMicMute exec amixer set Capture toggle;exec notify-send -t 3600 'mic mute toggle'
+	### # --locked XF86AudioMicMute exec ydotool key 248:1 248:0;exec notify-send -t 3600 'mic mute toggle'
+	### --locked XF86AudioMicMute exec pactl set-source-mute @DEFAULT_SOURCE@ toggle;exec notify-send -t 3600 'mic mute toggle'
+	### --locked XF86MonBrightnessUp exec light -A 5
+	### --locked XF86MonBrightnessDown exec light -U 5
+
 }
 
 
diff --git a/nix/systemd.nix b/nix/systemd.nix
index fcc17fb..9325877 100644
--- a/nix/systemd.nix
+++ b/nix/systemd.nix
@@ -105,7 +105,39 @@ in {
       Install = {WantedBy = [swayTgt];};
     };
 
-    gopls = {
+    avizo = {
+      Unit = {
+        # Description = "brightness/volume OSD";
+        # Documentation = "https://github.com/misterdanb/avizo";
+        BindsTo = swayTgt;
+      };
+
+      Service = {
+        # Type = "simple";
+        # ExecStart = "${pkgs.avizo}/bin/avizo-service";
+        Restart = "always";
+        RestartSec = "5s";
+        PrivateTmp = "yes";
+        # DevicePolicy = "closed";
+        # NoNewPrivileges = true;
+        # LockPersonality = true;
+        InaccessiblePaths = [
+          "-/lost+found"
+          "/dev/shm"
+          "-%h/.ssh"
+          "-%h/.gnupg"
+        ];
+        # KeyringMode = "private";
+        # SystemCallFilter = "~memfd_create @reboot";
+        TimeoutStopFailureMode = "abort";
+      };
+
+      Install = {WantedBy = [swayTgt];};
+    };
+
+    gopls = let
+      sock = "/tmp/.gopls-daemon.sock";
+    in {
       Unit = {
         Description = "Go language server";
       };