diff --git a/src/controller.cpp b/src/controller.cpp
index 788c9c98a..fcd7a3e9b 100644
--- a/src/controller.cpp
+++ b/src/controller.cpp
@@ -8,9 +8,6 @@
 
 #include <KLocalizedString>
 #include <KWindowConfig>
-#ifdef HAVE_WINDOWSYSTEM
-#include <KWindowEffects>
-#endif
 
 #include <QFile>
 #include <QFileInfo>
@@ -392,32 +389,6 @@ QString Controller::formatDuration(quint64 msecs, KFormat::DurationFormatOptions
     return KFormat().formatDuration(msecs, options);
 }
 
-void Controller::setBlur(QQuickItem *item, bool blur)
-{
-#ifdef HAVE_WINDOWSYSTEM
-    auto setWindows = [item, blur]() {
-        auto reg = QRect(QPoint(0, 0), item->window()->size());
-        KWindowEffects::enableBackgroundContrast(item->window(), blur, 1, 1, 1, reg);
-        KWindowEffects::enableBlurBehind(item->window(), blur, reg);
-    };
-
-    disconnect(item->window(), &QQuickWindow::heightChanged, this, nullptr);
-    disconnect(item->window(), &QQuickWindow::widthChanged, this, nullptr);
-    connect(item->window(), &QQuickWindow::heightChanged, this, setWindows);
-    connect(item->window(), &QQuickWindow::widthChanged, this, setWindows);
-    setWindows();
-#endif
-}
-
-bool Controller::hasWindowSystem() const
-{
-#ifdef HAVE_WINDOWSYSTEM
-    return true;
-#else
-    return false;
-#endif
-}
-
 void Controller::forceRefreshTextDocument(QQuickTextDocument *textDocument, QQuickItem *item)
 {
     // HACK: Workaround bug QTBUG 93281
diff --git a/src/controller.h b/src/controller.h
index 3fadc8ddc..7789f5b8f 100644
--- a/src/controller.h
+++ b/src/controller.h
@@ -64,11 +64,6 @@ class Controller : public QObject
      */
     Q_PROPERTY(bool supportSystemTray READ supportSystemTray CONSTANT)
 
-    /**
-     * @brief Whether KWindowSystem specific features are available.
-     */
-    Q_PROPERTY(bool hasWindowSystem READ hasWindowSystem CONSTANT)
-
     /**
      * @brief Whether NeoChat is currently able to connect to the server.
      */
@@ -128,11 +123,6 @@ public:
 
     [[nodiscard]] bool supportSystemTray() const;
 
-    /**
-     * @brief Set the background blur status of the given item.
-     */
-    Q_INVOKABLE void setBlur(QQuickItem *item, bool blur);
-
     bool isOnline() const;
 
     /**
@@ -180,8 +170,6 @@ private:
     bool m_isOnline = true;
     QMap<Quotient::Room *, int> m_notificationCounts;
 
-    bool hasWindowSystem() const;
-
     QPointer<PushRuleModel> m_pushRuleModel;
     Quotient::AccountRegistry m_accountRegistry;
 
diff --git a/src/qml/AppearanceSettingsPage.qml b/src/qml/AppearanceSettingsPage.qml
index 88332abaa..3f29d3beb 100644
--- a/src/qml/AppearanceSettingsPage.qml
+++ b/src/qml/AppearanceSettingsPage.qml
@@ -235,7 +235,7 @@ FormCard.FormCardPage {
 
         FormCard.FormCheckDelegate {
             id: hasWindowSystemDelegate
-            visible: Controller.hasWindowSystem
+            visible: WindowController.hasWindowSystem
             text: i18n("Use transparent chat page")
             enabled: !Config.compactLayout && !Config.isBlurImmutable
             checked: Config.blur
@@ -249,7 +249,7 @@ FormCard.FormCardPage {
 
         FormCard.AbstractFormDelegate {
             id: transparencyDelegate
-            visible: Controller.hasWindowSystem && Config.blur
+            visible: WindowController.hasWindowSystem && Config.blur
             enabled: !Config.isTransparancyImmutable
             background: Item {}
             contentItem: ColumnLayout {
diff --git a/src/qml/main.qml b/src/qml/main.qml
index 139038529..77a22479c 100644
--- a/src/qml/main.qml
+++ b/src/qml/main.qml
@@ -190,7 +190,7 @@ Kirigami.ApplicationWindow {
     }
 
     Component.onCompleted: {
-        Controller.setBlur(pageStack, Config.blur && !Config.compactLayout);
+        WindowController.setBlur(pageStack, Config.blur && !Config.compactLayout);
         if (Config.minimizeToSystemTrayOnStartup && !Kirigami.Settings.isMobile && Controller.supportSystemTray && Config.systemTray) {
             restoreWindowGeometryConnections.enabled = true; // To restore window size and position
         } else {
@@ -201,10 +201,10 @@ Kirigami.ApplicationWindow {
     Connections {
         target: Config
         function onBlurChanged() {
-            Controller.setBlur(pageStack, Config.blur && !Config.compactLayout);
+            WindowController.setBlur(pageStack, Config.blur && !Config.compactLayout);
         }
         function onCompactLayoutChanged() {
-            Controller.setBlur(pageStack, Config.blur && !Config.compactLayout);
+            WindowController.setBlur(pageStack, Config.blur && !Config.compactLayout);
         }
     }
 
diff --git a/src/windowcontroller.cpp b/src/windowcontroller.cpp
index 15259e5a6..c3fcb47f9 100644
--- a/src/windowcontroller.cpp
+++ b/src/windowcontroller.cpp
@@ -76,4 +76,30 @@ void WindowController::showAndRaiseWindow(const QString &startupId)
 #endif
 }
 
+bool WindowController::hasWindowSystem() const
+{
+#ifdef HAVE_WINDOWSYSTEM
+    return true;
+#else
+    return false;
+#endif
+}
+
+void WindowController::setBlur(QQuickItem *item, bool blur)
+{
+#ifdef HAVE_WINDOWSYSTEM
+    auto setWindows = [item, blur]() {
+        auto reg = QRect(QPoint(0, 0), item->window()->size());
+        KWindowEffects::enableBackgroundContrast(item->window(), blur, 1, 1, 1, reg);
+        KWindowEffects::enableBlurBehind(item->window(), blur, reg);
+    };
+
+    disconnect(item->window(), &QQuickWindow::heightChanged, this, nullptr);
+    disconnect(item->window(), &QQuickWindow::widthChanged, this, nullptr);
+    connect(item->window(), &QQuickWindow::heightChanged, this, setWindows);
+    connect(item->window(), &QQuickWindow::widthChanged, this, setWindows);
+    setWindows();
+#endif
+}
+
 #include "moc_windowcontroller.cpp"
diff --git a/src/windowcontroller.h b/src/windowcontroller.h
index a416bfbd0..cdcb1c7c5 100644
--- a/src/windowcontroller.h
+++ b/src/windowcontroller.h
@@ -4,8 +4,12 @@
 #pragma once
 
 #include <QObject>
-#include <QWindow>
-
+#include <QQmlEngine>
+#include <QQuickItem>
+#include <QQuickWindow>
+#ifdef HAVE_WINDOWSYSTEM
+#include <KWindowEffects>
+#endif
 /**
  * @class WindowController
  *
@@ -14,9 +18,21 @@
 class WindowController : public QObject
 {
     Q_OBJECT
+    QML_ELEMENT
+    QML_SINGLETON
+
+    /**
+     * @brief Whether KWindowSystem specific features are available.
+     */
+    Q_PROPERTY(bool hasWindowSystem READ hasWindowSystem CONSTANT)
 
 public:
     static WindowController &instance();
+    static WindowController *create(QQmlEngine *engine, QJSEngine *)
+    {
+        engine->setObjectOwnership(&instance(), QQmlEngine::CppOwnership);
+        return &instance();
+    }
 
     /**
      * @brief Set the window that the will be managed.
@@ -43,6 +59,13 @@ public:
      */
     void showAndRaiseWindow(const QString &startupId);
 
+    bool hasWindowSystem() const;
+
+    /**
+     * @brief Set the background blur status of the given item.
+     */
+    Q_INVOKABLE void setBlur(QQuickItem *item, bool blur);
+
 Q_SIGNALS:
     /**
      * @brief Triggered if the managed window is changed.