dwm: Inline picom / dunst configs

This prevents us from having specialization-specific configs in the home
directory, which would be unrelated to the main hyprland environment and
would require explicitly disabling it.

Other nix-configs solve this problem with nested directory structures,
however I enjoy being able to access all files in the nix-config one
directory away.

specializations/dwm.nix

@@ -1,12 +1,64 @@
-{ lib, ... }:
+{ lib, pkgs, ... }:
 
 let
   inherit (lib) singleton;
 in
 {
   home-manager.sharedModules = singleton {
-    services.picom.enable = true;
-    services.dunst.enable = true;
+    services.picom = rec {
+      enable = true;
+      backend = "glx";
+
+      vSync = true;
+      fade = true;
+      shadow = true;
+
+      fadeDelta = 5;
+
+      fadeExclude = [
+        "window_type = 'menu'"
+        "window_type = 'dropdown_menu'"
+        "window_type = 'popup_menu'"
+        "window_type = 'tooltip'"
+      ];
+
+      shadowExclude = fadeExclude;
+
+      settings = {
+        blur = {
+          method = "dual_kawase";
+          size = 10;
+        };
+      };
+    };
+
+    services.dunst = {
+      enable = true;
+
+      iconTheme = {
+        package = pkgs.papirus-icon-theme;
+        name = "Papirus";
+      };
+
+      settings = {
+        global = {
+          geometry = "1870x5-25+45";
+          width = 350;
+          separator_height = 5;
+          padding = 24;
+          horizontal_padding = 24;
+          frame_width = 3;
+          idle_threshold = 120;
+          alignment = "center";
+          word_wrap = "yes";
+          transparency = 5;
+          format = "<b>%s</b>: %b";
+          markup = "full";
+          min_icon_size = 32;
+          max_icon_size = 128;
+        };
+      };
+    };
   };
 
   services = {