Move to a secure greeter

desktop-environment/config.nix

@@ -21,12 +21,15 @@ in
   programs.dconf.enable = true;
   hardware.graphics.enable = true;
 
+  programs.regreet = {
+    enable = true;
+  };
+
   services.greetd = {
     enable = true;
     settings = {
       default_session = {
-          command = "Hyprland";
+        command = "${pkgs.cage}/bin/cage -s -- ${pkgs.regreet}/bin/regreet";
-          user = profile.username;
       };
     };
   };