fix

modules/applications/greetd.nix

@@ -0,0 +1,26 @@
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}:
+let
+  cfg = config.my.applications.greetd;
+in
+{
+  options.my.applications.greetd = {
+    enable = lib.mkEnableOption "greetd login manager";
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.greetd = {
+      enable = true;
+      settings = {
+        default_session = {
+          user = "greeter";
+          command = "${pkgs.tuigreet}/bin/tuigreet --time --remember --cmd niri-session";
+        };
+      };
+    };
+  };
+}