diff --git a/CMakeLists.txt b/CMakeLists.txt
index da01a44..69aa130 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,3 +12,4 @@ set(CMAKE_PROJECT_LICENSE "${PROJECT_LICENSE}")
 add_subdirectory(pivoter)
 #add_subdirectory(core)
 add_subdirectory(src)
+add_subdirectory(qmldemo)
diff --git a/qmldemo/CMakeLists.txt b/qmldemo/CMakeLists.txt
new file mode 100644
index 0000000..5235c10
--- /dev/null
+++ b/qmldemo/CMakeLists.txt
@@ -0,0 +1,39 @@
+cmake_minimum_required(VERSION 3.16)
+
+project(demoForQmllsWhatsNew66 VERSION 0.1 LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+find_package(Qt6 6.4 REQUIRED COMPONENTS Quick)
+
+qt_standard_project_setup()
+
+add_subdirectory(MyModule)
+
+qt_add_executable(appdemoForQmllsWhatsNew66
+    main.cpp
+)
+
+qt_add_qml_module(appdemoForQmllsWhatsNew66
+    URI demoForQmllsWhatsNew66
+    QML_FILES Main.qml
+    RESOURCE_PREFIX /
+)
+
+set_target_properties(appdemoForQmllsWhatsNew66 PROPERTIES
+    MACOSX_BUNDLE_GUI_IDENTIFIER my.example.com
+    MACOSX_BUNDLE_BUNDLE_VERSION ${PROJECT_VERSION}
+    MACOSX_BUNDLE_SHORT_VERSION_STRING ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}
+    MACOSX_BUNDLE TRUE
+    WIN32_EXECUTABLE TRUE
+)
+
+target_link_libraries(appdemoForQmllsWhatsNew66
+    PRIVATE Qt6::Quick myModule
+)
+
+install(TARGETS appdemoForQmllsWhatsNew66
+    BUNDLE DESTINATION .
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+)
diff --git a/qmldemo/Main.qml b/qmldemo/Main.qml
new file mode 100644
index 0000000..9b825e6
--- /dev/null
+++ b/qmldemo/Main.qml
@@ -0,0 +1,51 @@
+import QtQuick
+import QtQuick.Window
+import MyModule
+
+Window {
+    width: 640
+    height: 480
+    visible: true
+    title: qsTr("Hello World")
+
+    MyComponent {
+    }
+    component UnknownComponent: Item {
+    }
+    UnknownComponent {
+    }
+
+    Item {
+        id: myItem
+
+        property int i
+    }
+    property int i
+    property int childI: myItem.i
+
+    function getI() {
+        f(1, 2, 3);
+        return myItem.i;
+    }
+
+    function f(a, b, c) {
+        if (a) {
+            b = a + b;
+        } else {
+            a = a + myItem.i;
+        }
+        let sum = 0;
+        for (i = a; i < b; i = i + c) {
+            while (a) {
+                sum = sum + b - c + a * i;
+                {
+                    let i = 32 // not a definition nor usage of i
+                    i = 44 // neither
+                }
+            }
+        }
+        console.log(sum);
+    }
+
+    property UnknownComponent myComponent
+}
diff --git a/qmldemo/MyModule/CMakeLists.txt b/qmldemo/MyModule/CMakeLists.txt
new file mode 100644
index 0000000..25ec217
--- /dev/null
+++ b/qmldemo/MyModule/CMakeLists.txt
@@ -0,0 +1,6 @@
+
+qt_add_qml_module(myModule
+    URI MyModule
+    QML_FILES MyComponent.qml
+    RESOURCE_PREFIX /
+)
diff --git a/qmldemo/MyModule/MyComponent.qml b/qmldemo/MyModule/MyComponent.qml
new file mode 100644
index 0000000..fc51688
--- /dev/null
+++ b/qmldemo/MyModule/MyComponent.qml
@@ -0,0 +1,5 @@
+import QtQuick 2.15
+
+Item {
+    property string data: "Hello World!"
+}
diff --git a/qmldemo/main.cpp b/qmldemo/main.cpp
new file mode 100644
index 0000000..d14416f
--- /dev/null
+++ b/qmldemo/main.cpp
@@ -0,0 +1,17 @@
+#include <QGuiApplication>
+#include <QQmlApplicationEngine>
+
+
+int main(int argc, char *argv[])
+{
+    QGuiApplication app(argc, argv);
+
+    QQmlApplicationEngine engine;
+    const QUrl url(u"qrc:/demoForQmllsWhatsNew66/Main.qml"_qs);
+    QObject::connect(&engine, &QQmlApplicationEngine::objectCreationFailed,
+        &app, []() { QCoreApplication::exit(-1); },
+        Qt::QueuedConnection);
+    engine.load(url);
+
+    return app.exec();
+}