diff --git a/flake.lock b/flake.lock
index 670d7e5..55d4777 100644
--- a/flake.lock
+++ b/flake.lock
@@ -7,11 +7,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1636044164,
-        "narHash": "sha256-RI9QjS8NBrfVTp6dzmcEVKNNjxYGBf26+/7ihDA/USc=",
+        "lastModified": 1636274622,
+        "narHash": "sha256-tZYuGhqcfH7piCsrUrIYM0P3oPJcoBxGkuxeFNVxkCc=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "70c5b268e10025c70823767f4fb49e240b40151d",
+        "rev": "2917ef23b398a22ee33fb34b5766b28728228ab1",
         "type": "github"
       },
       "original": {
@@ -53,11 +53,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1635844945,
-        "narHash": "sha256-tZcL307dj28jgEU1Wdn+zwG9neyW0H2+ZjdVhvJxh9g=",
+        "lastModified": 1636267212,
+        "narHash": "sha256-KDS173KqmqrYUPY9N4vf750GxIo+S6E0djyq2BsQm8s=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "b67e752c29f18a0ca5534a07661366d6a2c2e649",
+        "rev": "c935f5e0add2cf0ae650d072c8357533e21b0c35",
         "type": "github"
       },
       "original": {
diff --git a/hosts/miniding/configuration.nix b/hosts/miniding/configuration.nix
index e7a718c..640c83b 100644
--- a/hosts/miniding/configuration.nix
+++ b/hosts/miniding/configuration.nix
@@ -55,17 +55,22 @@
       gdm.enable = true;
     };
 
-    deviceSection = ''
-      Option "TearFree" "True"
-    '';
-
     windowManager.i3.enable = true;
 
   };
   
 
   # Enable sound.
-  sound.enable = true;
+  sound = {
+    enable = true;
+
+    mediaKeys = {
+      enable = true;
+
+      volumeStep = "2";
+    };
+  };
+
   hardware.pulseaudio.enable = true;
 
   hardware.opengl.driSupport32Bit = true;
diff --git a/user/progs/i3/default.nix b/user/progs/i3/default.nix
index 7484da4..7df8119 100644
--- a/user/progs/i3/default.nix
+++ b/user/progs/i3/default.nix
@@ -3,6 +3,11 @@
 let
 	mod = "Mod4";
 in {
+	services.picom = {
+		enable = true;
+		vSync = true;
+	};
+
 	xsession.windowManager.i3 = {
 		enable = true;
 		config = {
diff --git a/user/progs/polybar/default.nix b/user/progs/polybar/default.nix
index 396e78f..b5accb3 100644
--- a/user/progs/polybar/default.nix
+++ b/user/progs/polybar/default.nix
@@ -6,7 +6,6 @@
 
 		package = pkgs.polybar.override {
 			i3Support = true;
-			mpdSupport = true;
 			pulseSupport = true;
 		};