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/utils/memorymap.h

@@ -0,0 +1,73 @@
+/*
+    SPDX-FileCopyrightText: 2023 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
+
+    SPDX-License-Identifier: GPL-2.0-or-later
+*/
+
+#pragma once
+
+#include <sys/mman.h>
+#include <utility>
+
+namespace KWin
+{
+
+class MemoryMap
+{
+public:
+    MemoryMap()
+        : m_data(MAP_FAILED)
+        , m_size(0)
+    {
+    }
+
+    MemoryMap(int size, int prot, int flags, int fd, off_t offset)
+        : m_data(mmap(nullptr, size, prot, flags, fd, offset))
+        , m_size(size)
+    {
+    }
+
+    MemoryMap(MemoryMap &&other)
+        : m_data(std::exchange(other.m_data, MAP_FAILED))
+        , m_size(std::exchange(other.m_size, 0))
+    {
+    }
+
+    ~MemoryMap()
+    {
+        if (m_data != MAP_FAILED) {
+            munmap(m_data, m_size);
+        }
+    }
+
+    MemoryMap &operator=(MemoryMap &&other)
+    {
+        if (m_data != MAP_FAILED) {
+            munmap(m_data, m_size);
+        }
+        m_data = std::exchange(other.m_data, MAP_FAILED);
+        m_size = std::exchange(other.m_size, 0);
+        return *this;
+    }
+
+    inline bool isValid() const
+    {
+        return m_data != MAP_FAILED;
+    }
+
+    inline void *data() const
+    {
+        return m_data;
+    }
+
+    inline int size() const
+    {
+        return m_size;
+    }
+
+private:
+    void *m_data;
+    int m_size;
+};
+
+} // namespace KWin