Switch SDDM to greetd

modules/desktop/plasma.nix

@@ -36,41 +36,6 @@ in {
       greetd.enableKwallet = true;
     };
     services.xserver = {
-      displayManager.sddm = let
-        sddm-sugar-dark-configured = pkgs.sddm-sugar-dark.override {
-          config = {
-            General = {
-              Background = "${cfg.sddm.backgroundImage}";
-              ScaleImageCropped = true;
-              ScreenWidth = builtins.toString cfg.sddm.screenWidth;
-              ScreenHeight = builtins.toString cfg.sddm.screenHeight;
-
-              MainColor = "navajowhite";
-              AccentColor = "white";
-              RoundCorners = 20;
-              ScreenPadding = 0;
-              Font = "Noto Sans";
-              FontSize = "";
-
-              Locale = "";
-              HourFormat = "HH:mm";
-              DataFormat = "dddd, d of MMMM";
-
-              ForceLastUser = true;
-              ForcePasswordFocus = true;
-              ForceHideCompletePassword = true;
-              ForceHideVirtualKeyboardButton = false;
-
-              HeaderText = "Welcome!";
-            };
-          };
-        };
-      in {
-        enable = true;
-        autoNumlock = true;
-
-        theme = "${sddm-sugar-dark-configured}/usr/share/sddm/themes/sugar-dark";
-      };
       desktopManager.plasma5 = {
         enable = true;
         runUsingSystemd = true;
@@ -141,6 +106,34 @@ in {
       };
     };
 
+    users.users.greeter = {
+      home = "/var/lib/greeter";
+      createHome = true;
+      isSystemUser = true;
+    };
+
+    services.greetd = {
+      enable = true;
+      settings = let
+        swayGreeterConfig = pkgs.writeText "sway-config" ''
+exec "${pkgs.qtgreet}/bin/qtgreet -d ${config.users.users.greeter.home}/data; ${pkgs.sway}/bin/swaymsg exit"
+
+bindsym Mod4+shift+e exec ${pkgs.sway}/bin/swaynag \
+-t warning \
+-m 'What do you want to do?' \
+-b 'Poweroff' 'systemctl poweroff' \
+-b 'Reboot' 'systemctl reboot'
+
+input * {
+    xkb_layout de
+}
+        '';
+      in {
+        default_session = {
+          command = "${pkgs.sway}/bin/sway --config ${swayGreeterConfig}";
+        };
+      };
+    };
     xdg.portal = {
       enable = true;
       extraPortals = [ pkgs.xdg-desktop-portal-kde ];