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/system-types/desktop/desktop.nix

@@ -0,0 +1,28 @@
+{ inputs, ... }: {
+  flake.modules.nixos.system-desktop = {
+    imports = with inputs.self.modules.nixos; [
+      system-base
+      hyprland
+
+      #TODO: moar aspects
+    ];
+
+    home-manager.sharedModules = [
+      inputs.self.modules.homeManager.system-desktop
+    ];
+  };
+
+  flake.modules.homeManager.system-desktop = {
+    imports = with inputs.self.modules.homeManager; [
+      system-base
+
+      rofi
+      kitty
+
+      browser
+      multimedia
+      zsh
+      thunderbird
+    ];
+  };
+}