Update to (somewhat?) dendritic pattern

Heavily inspired by https://github.com/Doc-Steve/dendritic-design-with-flake-parts.

> Atomic commits? Never heard of them!

modules/programs/catppuccin.nix

@@ -0,0 +1,48 @@
+{ inputs, ... }: {
+  flake-file.inputs = {
+    catppuccin.url = "github:catppuccin/nix/release-25.11";
+    catppuccin.inputs.nixpkgs.follows = "nixpkgs";
+  };
+
+  flake.modules.nixos.catppuccin = {
+    imports = [
+      inputs.catppuccin.nixosModules.catppuccin
+    ];
+
+    home-manager.sharedModules = [
+      inputs.self.modules.homeManager.catppuccin
+    ];
+
+    catppuccin.enable = true;
+  };
+
+  flake.modules.homeManager.catppuccin = { pkgs, ... }: {
+    imports = [
+      inputs.catppuccin.homeModules.catppuccin
+    ];
+
+    # Catppuccin cursor
+    home.pointerCursor =
+      let
+        size = 24;
+      in
+      {
+        enable = true;
+        package = pkgs.catppuccin-cursors.mochaMauve;
+        name = "catppuccin-mocha-mauve-cursors";
+        inherit size;
+
+        dotIcons.enable = true;
+        gtk.enable = true;
+        hyprcursor.enable = true;
+        hyprcursor.size = size;
+      };
+
+    catppuccin.enable = true;
+    # Required for QT apps to use the catppuccin colors
+    qt = {
+      enable = true;
+      style.name = "kvantum";
+    };
+  };
+}