diff --git a/include/pd/common.hpp b/include/pd/common.hpp
index 3b8901b..0ed260d 100644
--- a/include/pd/common.hpp
+++ b/include/pd/common.hpp
@@ -71,6 +71,7 @@ void Log(LogLevel lvl, std::format_string<Args...> fmt, Args&&... args) {
 }
 template <typename T>
 std::string TypeName() {
+#ifdef __RTTI
 #if defined(__GNUG__) && !defined(_MSC_VER)
   int res = 0;
   std::unique_ptr<char, void (*)(void*)> up{
@@ -79,6 +80,9 @@ std::string TypeName() {
 #else
   return typeid(T).name();  // no demangler available :/
 #endif
+#else
+  return "";
+#endif
 }
 }  // namespace PD
 
diff --git a/include/pd/core/pool.hpp b/include/pd/core/pool.hpp
index 6ce6101..529bd28 100644
--- a/include/pd/core/pool.hpp
+++ b/include/pd/core/pool.hpp
@@ -107,6 +107,31 @@ class Pool {
     pPos = 0;
   }
 
+  /**
+   * Copy the data of another pool
+   */
+  void AppendCopy(const Pool& v) {
+    if (!v.size()) return;
+    ExpandIf(v.size());
+    for (size_t i = 0; i < v.size(); i++) {
+      pData[pPos + i] = v.pData[i];
+    }
+    pPos += v.size();
+  }
+
+  /**
+   * Move the data of another pool
+   */
+  void AppendMove(Pool& v) {
+    if (!v.size()) return;
+    ExpandIf(v.size());
+    for (size_t i = 0; i < v.size(); i++) {
+      pData[pPos + i] = std::move(v.pData[i]);
+    }
+    pPos += v.size();
+    v.ResetFast();
+  }
+
   size_t size() const { return pPos; }
   size_t capacity() const { return pCap; }
   T& at(size_t idx) { return pData[idx]; }
diff --git a/include/pd/lithium/texture.hpp b/include/pd/lithium/texture.hpp
index 9f25d3e..b88440b 100644
--- a/include/pd/lithium/texture.hpp
+++ b/include/pd/lithium/texture.hpp
@@ -16,7 +16,7 @@ enum class TextureFormat {
   A8,
 };
 namespace Li {
-static int TextureFormat2Bpp(TextureFormat fmt) {
+inline int TextureFormat2Bpp(TextureFormat fmt) {
   switch (fmt) {
     case PD::TextureFormat::A8:
       return 1;
diff --git a/source/lithium/drawlist.cpp b/source/lithium/drawlist.cpp
index ef7c89a..8d12693 100644
--- a/source/lithium/drawlist.cpp
+++ b/source/lithium/drawlist.cpp
@@ -10,9 +10,14 @@ PD_API Drawlist::Drawlist() { Clear(); }
 
 PD_API Drawlist::~Drawlist() { Clear(); }
 
-PD_API void Drawlist::Merge(Drawlist& other) {}
+PD_API void Drawlist::Merge(Drawlist& other) {
+  pCommands.AppendMove(other.pCommands);
+  other.Clear();
+}
 
-PD_API void Drawlist::Copy(Drawlist& other) {}
+PD_API void Drawlist::Copy(Drawlist& other) {
+  pCommands.AppendCopy(other.pCommands);
+}
 
 PD_API void Drawlist::Optimize() {}