Switch to sddm

modules/swaywm.nix

@@ -8,10 +8,16 @@ with lib;
     # Turn on GDM for login
     services.xserver = {
       enable = true;
-      autorun = false;
+      autorun = true;
       displayManager = {
-        gdm = {
+        sddm = {
           enable = true;
+          settings = {
+            Wayland = {
+              CompositorCommand = "kwin_wayland --no-lockscreen";
+            };
+          };
+          theme = "sugar-dark";
         };
         defaultSession = "sway";
       };
@@ -40,6 +46,21 @@ with lib;
       gsettings-desktop-schemas
       lxappearance
       kde-gtk-config
+      (stdenv.mkDerivation rec {
+        pname = "sddm-sugar-dark-theme";
+        version = "1.2";
+        dontBuild = true;
+        installPhase = ''
+          mkdir -p $out/share/sddm/themes
+          cp -aR $src $out/share/sddm/themes/sugar-dark
+        '';
+        src = fetchFromGitHub {
+          owner = "MarianArlt";
+          repo = "sddm-sugar-dark";
+          rev = "v${version}";
+          sha256 = "0gx0am7vq1ywaw2rm1p015x90b75ccqxnb1sz3wy8yjl27v82yhb";
+        };
+      })
     ];
     # Enable QT themeing
     programs.qt5ct.enable = true;