feat: add beets to manage my music library

modules/desktop/beets.nix

@@ -0,0 +1,18 @@
+{config, ...}: {
+  flake.modules.nixos.desktop = {pkgs, ...}: {
+    environment.systemPackages = with pkgs; [beets];
+  };
+
+  flake.modules.homeManager.desktop = {
+    programs.beets = {
+      enable = true;
+      settings = {
+        directory = "/home/${config.flake.meta.user.name}/Music";
+        import.move = true;
+        import.copy = false;
+        paths.default = "$albumartist/$album/$track $title";
+        plugins = ["fetchart" "musicbrainz"];
+      };
+    };
+  };
+}