diff --git a/modules/home/services/picom/default.nix b/modules/home/services/picom/default.nix
new file mode 100644
index 0000000..3fc60c0
--- /dev/null
+++ b/modules/home/services/picom/default.nix
@@ -0,0 +1,96 @@
+{
+  lib,
+  config,
+  pkgs,
+  ...
+}:
+let
+  inherit (lib) mkEnableOption mkIf;
+
+  cfg = config.marleyos.services.picom;
+  hasXorg = config.xsession.enable;
+in
+{
+  options.marleyos.services.picom.enable = mkEnableOption "picom";
+
+  config = mkIf (cfg.enable && hasXorg) {
+    services.picom = {
+      enable = true;
+      package = config.lib.nixGL.wrap pkgs.picom;
+    };
+
+    # The module config options are a nightmare.
+    xdg.configFile."picom/picom.conf".text = # conf
+      ''
+        # Shadows - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+        shadow = true;
+        shadow-radius = 20;
+        shadow-opacity = .30;
+        shadow-offset-x = -7;
+        shadow-offset-y = 7;
+        shadow-exclude = [
+          "name = 'Notification'",
+          "class_g = 'Conky'",
+          "class_g ?= 'Notify-osd'",
+          "class_g = 'Cairo-clock'"
+        ];
+
+        # Fading - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+        fading = true;
+        fade-in-step = 0.03;
+        fade-out-step = 0.03;
+
+        # Transparency / Opacity - - - - - - - - - - - - - - - - - - - - - - -
+        inactive-opacity = 0.7;
+        active-opacity = 0.9;
+        frame-opacity = 0.7;
+        inactive-opacity-override = false;
+        focus-exclude = [ "class_g = 'Cairo-clock'" ];
+        opacity-rule = [
+          "100:class_g = 'firefox'",
+          "60:class_g = 'dolphin'",
+          "50:class_g = 'cava'"
+        ];
+
+        # Corners - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+        corner-radius = 20;
+        rounded-corners-exclude = [
+          "window_type = 'dock'",
+          "window_type = 'desktop'",
+          "class_g = 'Dunst'"
+        ];
+
+        # Background Blurring - - - - - - - - - - - - - - - - - - - - - - - - -
+        blur-method = "dual_kawase";
+        blur-size = 12;
+        blur-strength = 10;
+        blur-background = false;
+        blur-kern = "3x3box";
+        blur-background-exclude = [
+          "window_type = 'desktop'",
+          "name = 'firefox'",
+          "class_g = 'slop'"
+        ];
+
+        # General - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+        backend = "glx";
+        dithered-present = false;
+        vsync = true;
+        mark-wmwin-focused = true;
+        detect-rounded-corners = true;
+        detect-client-opacity = true;
+        detect-transient = true;
+        use-damage = false;
+        log-level = "warn";
+
+        wintypes:
+        {
+          tooltip = { fade = true; shadow = true; opacity = 0.75; focus = true; full-shadow = false; };
+          dock = { shadow = false; clip-shadow-above = true; }
+          dnd = { shadow = false; }
+          popup_menu = { opacity = 0.8; }
+          dropdown_menu = { opacity = 0.8; }
+        };
+      '';
+  };
+}
diff --git a/modules/home/xorg/i3/default.nix b/modules/home/xorg/i3/default.nix
index e1e89d1..b62e3f1 100644
--- a/modules/home/xorg/i3/default.nix
+++ b/modules/home/xorg/i3/default.nix
@@ -15,8 +15,11 @@ in
   config = mkIf cfg.enable {
     marleyos = {
       programs.rofi = enabled;
-      services.polybar = enabled;
-      services.dunst = enabled;
+      services = {
+        picom = enabled;
+        polybar = enabled;
+        dunst = enabled;
+      };
     };
   };
 }