Advance Wayland and KDE package bring-up

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

local/recipes/kde/kwin/source/src/plugin.h

@@ -0,0 +1,49 @@
+/*
+    SPDX-FileCopyrightText: 2020 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
+
+    SPDX-License-Identifier: GPL-2.0-or-later
+*/
+
+#pragma once
+
+#include "config-kwin.h"
+
+#include <kwin_export.h>
+
+#include <QObject>
+#include <memory>
+
+namespace KWin
+{
+
+#define PluginFactory_iid "org.kde.kwin.PluginFactoryInterface" KWIN_PLUGIN_VERSION_STRING
+
+/**
+ * The Plugin class is the baseclass for all binary compositor extensions.
+ *
+ * Note that a binary extension must be recompiled with every new KWin release.
+ */
+class KWIN_EXPORT Plugin : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit Plugin();
+};
+
+/**
+ * The PluginFactory class creates binary compositor extensions.
+ */
+class KWIN_EXPORT PluginFactory : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit PluginFactory();
+
+    virtual std::unique_ptr<Plugin> create() const = 0;
+};
+
+} // namespace KWin
+
+Q_DECLARE_INTERFACE(KWin::PluginFactory, PluginFactory_iid)