refactor: cleaned up nixos dir

nixos/modules/desktop/wayland/greetd/default.nix

@@ -0,0 +1,32 @@
+{
+  config,
+  flake,
+  lib,
+  ...
+}:
+let
+  inherit (flake.config.people)
+    user0
+    ;
+in
+{
+  services = {
+    greetd = {
+      enable = true;
+      vt = 7;
+      settings =
+        let
+          default_session = {
+            command = "${lib.meta.getExe config.programs.hyprland.package}";
+            user = user0;
+          };
+        in
+        {
+          inherit
+            default_session
+            ;
+          initial_session = default_session;
+        };
+    };
+  };
+}