grub + sddm

system-modules/dm.nix

@@ -0,0 +1,22 @@
+{ config, pkgs, ... }:
+
+{
+  environment.systemPackages = with  pkgs; [
+    sddm
+    where-is-my-sddm-theme
+  ];
+
+  services.xserver = {
+    displayManager.sddm = {
+      enable = true;
+      theme = "where_is_my_sddm_theme";
+      settings = {
+        theme = {
+          # background = /home/nx2/Pictures/
+          passwordFontSize = 12;
+          passwordInputCursorVisible = true;
+        };
+      };
+    };
+  };
+}