refactor(flake-parts): initial flake-parts configuration

outputs/nixos/default.nix

@@ -0,0 +1,24 @@
+{ inputs, nixpkgs, self, ... }:
+
+let
+  inherit (nixpkgs.lib) nixosSystem;
+
+  hm = inputs.home-manager.nixosModules.home-manager;
+
+  systemInputs = "${self}/inputs/system";
+  base = "${systemInputs}/modules/base";
+
+  specialArgs = {inherit inputs self;};
+in
+
+{
+  ooksdesk = nixosSystem {
+    inherit specialArgs;
+    system = "x86_64-linux";
+    modules = [
+      ./ooksdesk
+      hm
+      base
+    ];
+  };
+}