Switch SDDM to greetd

packages/development/cpp/dfl-utils/default.nix

@@ -0,0 +1,21 @@
+{
+  stdenv
+, lib, fetchFromGitLab
+, meson, ninja, pkg-config
+, qtbase, wrapQtAppsHook
+}:
+
+stdenv.mkDerivation {
+  pname = "dfl-utils";
+  version = "20221026";
+
+  src = fetchFromGitLab {
+    owner = "desktop-frameworks";
+    repo = "Utils";
+    rev = "603f95cae18998e9ff8b205c3801699056549505";
+    sha256 = "0wbiaw6d2n13cpnpnk7089c9jqbwxn0dp9qz4n9cp0ic3z5w0gq4";
+  };
+
+  buildInputs = [ qtbase meson ninja pkg-config ];
+  nativeBuildInputs = [ wrapQtAppsHook ]; 
+}