diff --git a/config/headful.nix b/config/headful.nix
index 0cd46a5..cb5c0e3 100644
--- a/config/headful.nix
+++ b/config/headful.nix
@@ -49,9 +49,20 @@
   };
 
   # List packages to be installed for headful systems
-  environment.systemPackages = with pkgs; [
-    picom
-  ];
+  #environment.systemPackages = with pkgs; [
+  #];
+
+  # Install OpenGL
+  hardware.graphics = {
+    enable = true;
+    enable32Bit = true;
+  };
+
+  # Install picom for transparency.
+  services.picom = {
+    enable = true;
+    backend = "glx";
+  };
 
   # Install additional programs
   programs.thunar.enable = true;
diff --git a/config/omen.nix b/config/omen.nix
index 94d94b1..09c1e63 100644
--- a/config/omen.nix
+++ b/config/omen.nix
@@ -49,12 +49,6 @@
   services.xserver.dpi = 96;
   environment.variables.GDK_SCALE = "0.5";
 
-  # Install OpenGL
-  hardware.graphics = {
-    enable = true;
-    enable32Bit = true;
-  };
-
   # Ignore laptop lid closing when connected to power.
   services.logind.lidSwitchExternalPower = "ignore";
 
diff --git a/dotfiles/.config/i3/config b/dotfiles/.config/i3/config
index c0798db..7810d68 100644
--- a/dotfiles/.config/i3/config
+++ b/dotfiles/.config/i3/config
@@ -158,5 +158,3 @@ exec "xautolock -detectsleep -time 3 -locker i3lock-fancy"
 exec_always  --no-startup-id "$HOME/.screenlayout/launch.sh &" # setup screen layout and wallpapers
 exec_always  --no-startup-id "$HOME/.scripts/autostart_desktop.sh &" # run autostart desktop apps
 exec --no-startup-id "polybar &" # status bar
-exec --no-startup-id "picom &" # startup composition manager (transparency)
-exec --no-startup-id "emacs --daemon &" # startup emacs daemon