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/spicetify.nix

@@ -0,0 +1,30 @@
+{ inputs, ... }: {
+  flake-file.inputs = {
+    spicetify-nix.url = "github:Gerg-L/spicetify-nix";
+    spicetify-nix.inputs.nixpkgs.follows = "nixpkgs";
+  };
+
+  flake.modules.homeManager.spicetify = { pkgs, ... }: {
+    imports = [
+      inputs.spicetify-nix.homeManagerModules.default
+    ];
+
+    programs.spicetify =
+      let
+        spkgs = inputs.spicetify-nix.legacyPackages.${pkgs.stdenv.hostPlatform.system};
+      in
+      {
+        enable = true;
+        enabledExtensions = with spkgs.extensions; [
+          fullAppDisplay
+          shuffle
+          aiBandBlocker
+        ];
+        enabledCustomApps = with spkgs.apps; [
+          newReleases
+        ];
+        theme = spkgs.themes.catppuccin;
+        colorScheme = "mocha";
+      };
+  };
+}