move desktop shit again

modules/desktop/dm.nix

@@ -0,0 +1,33 @@
+{
+  pkgs,
+  config,
+  lib,
+  ...
+}: let
+  cfg = config.jade.desktop.dm;
+in
+  with lib; {
+    options.jade.desktop.dm.autoLogin = {
+      enable = mkEnableOption "Enable Autologin";
+      delay = mkOption {
+        type = types.int;
+        default = 0;
+      };
+    };
+    config.services = {
+      displayManager = {
+        autoLogin = {
+          enable = cfg.autoLogin.enable;
+          user = "jade";
+        };
+        defaultSession = "niri";
+      };
+      xserver.displayManager.gdm = {
+        enable = true;
+        banner = "Meow :3";
+        autoLogin = {
+          delay = cfg.autoLogin.delay;
+        };
+      };
+    };
+  }