diff --git a/BasaltPresenter/Presenter/CMakeLists.txt b/BasaltPresenter/Presenter/CMakeLists.txt
index 604a0c3..bf97147 100644
--- a/BasaltPresenter/Presenter/CMakeLists.txt
+++ b/BasaltPresenter/Presenter/CMakeLists.txt
@@ -3,14 +3,14 @@ target_sources(BasaltPresenter
 PRIVATE
     main.cpp
     dll_loader.cpp
-    command_client.cpp
+    cmd_client.cpp
 )
 target_sources(BasaltPresenter
 PUBLIC
 FILE_SET HEADERS
 FILES
     dll_loader.hpp
-    command_client.hpp
+    cmd_client.hpp
 )
 target_include_directories(BasaltPresenter
 PUBLIC
diff --git a/BasaltPresenter/Presenter/command_client.cpp b/BasaltPresenter/Presenter/cmd_client.cpp
similarity index 97%
rename from BasaltPresenter/Presenter/command_client.cpp
rename to BasaltPresenter/Presenter/cmd_client.cpp
index d2ffbf0..9b265ae 100644
--- a/BasaltPresenter/Presenter/command_client.cpp
+++ b/BasaltPresenter/Presenter/cmd_client.cpp
@@ -1,8 +1,8 @@
-#include "command_client.hpp"
+#include "cmd_client.hpp"
 #include <basalt/char_types.hpp>
 #include <stdexcept>
 
-namespace Basalt::Presenter {
+namespace basalt::presenter::cmd_client {
 
     CommandClient::CommandClient() : m_PipeOperator(BSTEXT("ed0e3f1f-d214-4880-9562-640bce15e72e")), m_Status(ClientStatus::Ready) {}
 
diff --git a/BasaltPresenter/Presenter/command_client.hpp b/BasaltPresenter/Presenter/cmd_client.hpp
similarity index 72%
rename from BasaltPresenter/Presenter/command_client.hpp
rename to BasaltPresenter/Presenter/cmd_client.hpp
index 122d4ee..f991780 100644
--- a/BasaltPresenter/Presenter/command_client.hpp
+++ b/BasaltPresenter/Presenter/cmd_client.hpp
@@ -2,16 +2,17 @@
 #include <basalt/pipe_operator.hpp>
 #include <cstdint>
 
-namespace Basalt::Presenter {
+namespace basalt::presenter::cmd_client {
 
     // Protocol codes
     enum class ProtocolCode : std::uint8_t {
-        HANDSHAKE_REQUEST = 0x61,  //< Trainer -> Presenter
-        HANDSHAKE_RESPONSE = 0x62, //< Presenter -> Trainer
-        DATA_READY = 0x01,         //< Presenter -> Trainer
-        DATA_RECEIVED = 0x02,      //< Trainer -> Presenter
-        STOP_REQUEST = 0x71,       //< Both directions
-        STOP = 0x71                //< Both directions (same code)
+        HANDSHAKE_REQUEST = 0x61,  ///< Trainer -> Presenter
+        HANDSHAKE_RESPONSE = 0x62, ///< Presenter -> Trainer
+        DATA_READY = 0x01,         ///< Presenter -> Trainer
+        DATA_RECEIVED = 0x02,      ///< Trainer -> Presenter
+        ACTIVELY_STOP = 0x21,       ///< Presenter-->Trainer
+        STOP_REQUEST = 0X71, ///< Presenter<--Trainer
+        STOP_RESPONSE = 0x72,                //< Presenter-->Trainer
     };
 
     // Pixel kind values
diff --git a/BasaltPresenter/Presenter/dll_loader.cpp b/BasaltPresenter/Presenter/dll_loader.cpp
index 3a1b89c..5c4c9a1 100644
--- a/BasaltPresenter/Presenter/dll_loader.cpp
+++ b/BasaltPresenter/Presenter/dll_loader.cpp
@@ -8,9 +8,9 @@
 #include <unistd.h>
 #endif
 
-using ::Basalt::Shared::Char::BSStringView;
+using ::basalt::shared::char_types::BSStringView;
 
-namespace Basalt::Presenter {
+namespace basalt::presenter::dll_loader {
 
     static std::filesystem::path get_executable() {
 #if defined(BASALT_OS_WINDOWS)
diff --git a/BasaltPresenter/Presenter/dll_loader.hpp b/BasaltPresenter/Presenter/dll_loader.hpp
index c09ac3e..fd21d50 100644
--- a/BasaltPresenter/Presenter/dll_loader.hpp
+++ b/BasaltPresenter/Presenter/dll_loader.hpp
@@ -1,5 +1,4 @@
 #include <basalt/char_types.hpp>
-#include <string_view>
 
 #if defined(BASALT_OS_WINDOWS)
 #include <Windows.h>
@@ -7,7 +6,7 @@
 #include <dlfcn.h>
 #endif
 
-namespace Basalt::Presenter {
+namespace basalt::presenter::dll_loader {
 
     enum class DllKind {
         Engine, ///< Render engine
@@ -25,7 +24,7 @@ namespace Basalt::Presenter {
 #endif
 
     public:
-        DllLoader(DllKind kind, const Shared::Char::BSStringView& filename);
+        DllLoader(DllKind kind, const shared::char_types::BSStringView& filename);
         ~DllLoader();
 
     private:
diff --git a/BasaltPresenter/Shared/CMakeLists.txt b/BasaltPresenter/Shared/CMakeLists.txt
index fb53207..d97b7f6 100644
--- a/BasaltPresenter/Shared/CMakeLists.txt
+++ b/BasaltPresenter/Shared/CMakeLists.txt
@@ -3,8 +3,11 @@ target_sources(BasaltShared
 PRIVATE
     # Sources
     basalt/pipe_operator.cpp
-    basalt/kernel.cpp
     basalt/math.cpp
+    basalt/engine.cpp
+    basalt/deliver.cpp
+    basalt/object_loader.cpp
+    basalt/anime_loader.cpp
     
 )
 target_sources(BasaltShared
@@ -15,8 +18,12 @@ FILES
     basalt/char_types.hpp
     basalt/export_macro.hpp
     basalt/pipe_operator.hpp
-    basalt/kernel.hpp
     basalt/math.hpp
+    basalt/guid.hpp
+    basalt/engine.hpp
+    basalt/deliver.hpp
+    basalt/object_loader.hpp
+    basalt/anime_loader.hpp
 )
 target_include_directories(BasaltShared
 PUBLIC
diff --git a/BasaltPresenter/Shared/basalt/anime_loader.cpp b/BasaltPresenter/Shared/basalt/anime_loader.cpp
new file mode 100644
index 0000000..00eb5ac
--- /dev/null
+++ b/BasaltPresenter/Shared/basalt/anime_loader.cpp
@@ -0,0 +1,13 @@
+#include "anime_loader.hpp"
+
+namespace basalt::shared::anime_loader {
+
+    IAnimeLoader::IAnimeLoader() {
+
+    }
+
+    IAnimeLoader::~IAnimeLoader() {
+
+    }
+
+}
diff --git a/BasaltPresenter/Shared/basalt/anime_loader.hpp b/BasaltPresenter/Shared/basalt/anime_loader.hpp
new file mode 100644
index 0000000..cf4dd74
--- /dev/null
+++ b/BasaltPresenter/Shared/basalt/anime_loader.hpp
@@ -0,0 +1,13 @@
+#pragma once
+
+namespace basalt::shared::anime_loader {
+
+    class IAnimeLoader {
+    public:
+        IAnimeLoader();
+        virtual ~IAnimeLoader();
+
+    protected:
+    };
+
+} // namespace basalt::shared::anime_loader
diff --git a/BasaltPresenter/Shared/basalt/char_types.hpp b/BasaltPresenter/Shared/basalt/char_types.hpp
index 6fb445e..a2b421f 100644
--- a/BasaltPresenter/Shared/basalt/char_types.hpp
+++ b/BasaltPresenter/Shared/basalt/char_types.hpp
@@ -12,9 +12,9 @@
 #define BSTEXT(x) x
 #endif
 
-namespace Basalt::Shared::Char {
+namespace basalt::shared::char_types {
 
     using BSString = std::basic_string<BSCHAR>;
     using BSStringView = std::basic_string_view<BSCHAR>;
 
-}; // namespace Basalt::Shared::Char
+}; // namespace basalt::shared::char_types
diff --git a/BasaltPresenter/Shared/basalt/deliver.cpp b/BasaltPresenter/Shared/basalt/deliver.cpp
new file mode 100644
index 0000000..302b7aa
--- /dev/null
+++ b/BasaltPresenter/Shared/basalt/deliver.cpp
@@ -0,0 +1,29 @@
+#include "deliver.hpp"
+#include <stdexcept>
+
+namespace basalt::shared::deliver {
+
+    IDeliver::IDeliver() {}
+
+    IDeliver::~IDeliver() {}
+
+    guid::Guid IDeliver::GetGuid() const {
+        throw std::logic_error("unimplemented function");
+    }
+
+    void IDeliver::Startup(DeliverConfig &&config) {
+        if (this->status != DeliverStatus::Ready) throw std::runtime_error("unexpected deliver status");
+        this->config = std::move(config);
+        this->status = DeliverStatus::Running;
+    }
+
+    void IDeliver::Transmit() {
+        if (this->status != DeliverStatus::Running) throw std::runtime_error("unexpected deliver status");
+    }
+
+    void IDeliver::Shutdown() {
+        if (this->status != DeliverStatus::Running) throw std::runtime_error("unexpected deliver status");
+        this->status = DeliverStatus::Stop;
+    }
+
+}
diff --git a/BasaltPresenter/Shared/basalt/deliver.hpp b/BasaltPresenter/Shared/basalt/deliver.hpp
new file mode 100644
index 0000000..1309050
--- /dev/null
+++ b/BasaltPresenter/Shared/basalt/deliver.hpp
@@ -0,0 +1,33 @@
+#pragma once
+#include "guid.hpp"
+
+namespace basalt::shared::deliver {
+
+    struct DeliverConfig {
+        guid::Guid engine; ///< The GUID of render engine.
+    };
+
+    enum class DeliverStatus {
+        Ready,   ///< Engine was allocated but not initialized.
+        Running, ///< Engine has been initialized and running.
+        Stop,    ///< Engine is shutdown.
+    };
+
+    class IDeliver {
+    public:
+        IDeliver();
+        virtual ~IDeliver();
+
+    public:
+        virtual guid::Guid GetGuid() const;
+        virtual void Startup(DeliverConfig&& config);
+        virtual void Transmit();
+        virtual void Shutdown();
+
+    protected:
+        DeliverConfig config;
+        DeliverStatus status;
+    };
+
+}
+
diff --git a/BasaltPresenter/Shared/basalt/engine.cpp b/BasaltPresenter/Shared/basalt/engine.cpp
new file mode 100644
index 0000000..7703c79
--- /dev/null
+++ b/BasaltPresenter/Shared/basalt/engine.cpp
@@ -0,0 +1,34 @@
+#include "engine.hpp"
+#include <stdexcept>
+
+namespace basalt::shared::engine {
+
+    IEngine::IEngine() : config(), status(EngineStatus::Ready) {}
+
+    IEngine::~IEngine() {
+        if (this->status != EngineStatus::Stop) {
+            this->Shutdown();
+        }
+    }
+
+    guid::Guid IEngine::GetGuid() const {
+        throw std::logic_error("unimplemented function");
+    }
+
+    void IEngine::Startup(EngineConfig &&config) {
+        if (this->status != EngineStatus::Ready) throw std::runtime_error("unexpected engine status");
+        this->config = std::move(config);
+        this->status = EngineStatus::Running;
+    }
+
+    bool IEngine::Tick() {
+        if (this->status != EngineStatus::Running) throw std::runtime_error("unexpected engine status");
+        return false;
+    }
+
+    void IEngine::Shutdown() {
+        if (this->status != EngineStatus::Running) throw std::runtime_error("unexpected engine status");
+        this->status = EngineStatus::Stop;
+    }
+
+}
diff --git a/BasaltPresenter/Shared/basalt/engine.hpp b/BasaltPresenter/Shared/basalt/engine.hpp
new file mode 100644
index 0000000..6924a61
--- /dev/null
+++ b/BasaltPresenter/Shared/basalt/engine.hpp
@@ -0,0 +1,41 @@
+#pragma once
+#include "guid.hpp"
+#include <string>
+#include <cinttypes>
+
+namespace basalt::shared::engine {
+
+    struct EngineConfig {
+        bool headless;                   ///< Whether enable headless mode (No Window created).
+        std::uint32_t width;             ///< Window width.
+        std::uint32_t height;            ///< Window height.
+        guid::Guid deliver;              ///< The GUID of deliver.
+    };
+
+    enum class EngineStatus {
+        Ready,   ///< Engine was allocated but not initialized.
+        Running, ///< Engine has been initialized and running.
+        Stop,    ///< Engine is shutdown.
+    };
+
+    class IEngine {
+    public:
+        IEngine();
+        virtual ~IEngine();
+
+    public:
+        virtual guid::Guid GetGuid() const;
+        virtual void Startup(EngineConfig&& config);
+        /**
+         * @brief 
+         * @return True for active exit.
+         */
+        virtual bool Tick();
+        virtual void Shutdown();
+
+    protected:
+        EngineConfig config;
+        EngineStatus status;
+    };
+
+} // namespace basalt::shared::engine
diff --git a/BasaltPresenter/Shared/basalt/guid.hpp b/BasaltPresenter/Shared/basalt/guid.hpp
new file mode 100644
index 0000000..34a3232
--- /dev/null
+++ b/BasaltPresenter/Shared/basalt/guid.hpp
@@ -0,0 +1,50 @@
+#pragma once
+#include <cinttypes>
+#include <compare>
+
+namespace basalt::shared::guid {
+    
+    struct Guid {
+        std::uint32_t d1, d2;
+
+        constexpr Guid(std::uint32_t gd1 = 0, std::uint32_t gd2 = 0) : d1(gd1), d2(gd2) {}
+        Guid(const Guid& rhs) : d1(rhs.d1), d2(rhs.d2) {}
+        Guid(Guid&& rhs) noexcept : d1(rhs.d1), d2(rhs.d2) {}
+        Guid& operator=(const Guid& rhs) {
+            this->d1 = rhs.d1;
+            this->d2 = rhs.d2;
+            return *this;
+        }
+        Guid& operator=(Guid&& rhs) noexcept {
+            this->d1 = rhs.d1;
+            this->d2 = rhs.d2;
+            return *this;
+        }
+
+        auto operator<=>(const Guid& rhs) const {
+            if (auto cmp = this->d1 <=> rhs.d1; cmp != 0) return cmp;
+            return this->d2 <=> rhs.d2;
+        }
+        bool operator==(const Guid& rhs) const { return ((this->d1 == rhs.d1) && (this->d2 == rhs.d2)); }
+    };
+
+    constexpr Guid DIRECTX8_ENGINE{0x0, 0x1};
+    constexpr Guid DIRECTX9_ENGINE{0x0, 0x2};
+    constexpr Guid DIRECTX11_ENGINE{0x0, 0x3};
+    constexpr Guid DIRECTX12_ENGINE{0x0, 0x4};
+    constexpr Guid OPENGL_ENGINE{0x0, 0x5};
+    constexpr Guid VULKAN_ENGINE{0x0, 0x6};
+
+    constexpr Guid CUDA_DELIVER{0x1, 0x1};
+    constexpr Guid ROCM_DELIVER{0x1, 0x2};
+    constexpr Guid PIPE_DELIVER{0x1, 0x3};
+    constexpr Guid TCP_DELIVER{0x1, 0x4};
+    constexpr Guid MMAP_DELIVER{0x1, 0x5};
+
+    constexpr Guid TINYOBJLOADER_OBJECT_LOADER{0x2, 0x1};
+    constexpr Guid CGLTF_OBJECT_LOADER{0x2, 0x2};
+    constexpr Guid ASSIMP_OBJECT_LOADER{0x2, 0x3};
+
+    constexpr Guid HOMEBREW_ANIME_LOADER{0x3, 0x1};
+
+}
diff --git a/BasaltPresenter/Shared/basalt/kernel.cpp b/BasaltPresenter/Shared/basalt/kernel.cpp
deleted file mode 100644
index ec99349..0000000
--- a/BasaltPresenter/Shared/basalt/kernel.cpp
+++ /dev/null
@@ -1,65 +0,0 @@
-#include "kernel.hpp"
-#include <stdexcept>
-
-namespace Basalt::Shared::Kernel {
-
-#pragma region Engine
-
-    IEngine::IEngine() : config(), status(EngineStatus::Ready) {}
-
-    IEngine::~IEngine() {
-        if (this->status != EngineStatus::Stop) {
-            this->Shutdown();
-        }
-    }
-
-    Guid IEngine::GetGuid() const {
-        throw std::logic_error("unimplemented function");
-    }
-
-    void IEngine::Startup(EngineConfig &&config) {
-        if (this->status != EngineStatus::Ready) throw std::runtime_error("unexpected engine status");
-        this->config = std::move(config);
-        this->status = EngineStatus::Running;
-    }
-
-    bool IEngine::Tick() {
-        if (this->status != EngineStatus::Running) throw std::runtime_error("unexpected engine status");
-        return false;
-    }
-
-    void IEngine::Shutdown() {
-        if (this->status != EngineStatus::Running) throw std::runtime_error("unexpected engine status");
-        this->status = EngineStatus::Stop;
-    }
-
-#pragma endregion
-
-#pragma region Deliver
-
-    IDeliver::IDeliver() {}
-
-    IDeliver::~IDeliver() {}
-
-    Guid IDeliver::GetGuid() const {
-        throw std::logic_error("unimplemented function");
-    }
-
-    void IDeliver::Startup(DeliverConfig &&config) {
-        if (this->status != DeliverStatus::Ready) throw std::runtime_error("unexpected deliver status");
-        this->config = std::move(config);
-        this->status = DeliverStatus::Running;
-    }
-
-    void IDeliver::Transmit() {
-        if (this->status != DeliverStatus::Running) throw std::runtime_error("unexpected deliver status");
-    }
-
-    void IDeliver::Shutdown() {
-        if (this->status != DeliverStatus::Running) throw std::runtime_error("unexpected deliver status");
-        this->status = DeliverStatus::Stop;
-    }
-
-#pragma endregion
-
-} // namespace Basalt::Shared::Kernel
diff --git a/BasaltPresenter/Shared/basalt/kernel.hpp b/BasaltPresenter/Shared/basalt/kernel.hpp
deleted file mode 100644
index 21e893f..0000000
--- a/BasaltPresenter/Shared/basalt/kernel.hpp
+++ /dev/null
@@ -1,123 +0,0 @@
-#pragma once
-#include "char_types.hpp"
-#include <string>
-#include <cinttypes>
-
-namespace Basalt::Shared::Kernel {
-
-#pragma region Guid & Predefined Guid
-
-    struct Guid {
-        std::uint32_t d1, d2;
-
-        constexpr Guid(std::uint32_t gd1 = 0, std::uint32_t gd2 = 0) : d1(gd1), d2(gd2) {}
-        Guid(const Guid& rhs) : d1(rhs.d1), d2(rhs.d2) {}
-        Guid(Guid&& rhs) noexcept : d1(rhs.d1), d2(rhs.d2) {}
-        Guid& operator=(const Guid& rhs) {
-            this->d1 = rhs.d1;
-            this->d2 = rhs.d2;
-            return *this;
-        }
-        Guid& operator=(Guid&& rhs) noexcept {
-            this->d1 = rhs.d1;
-            this->d2 = rhs.d2;
-            return *this;
-        }
-
-        auto operator<=>(const Guid& rhs) const {
-            if (auto cmp = this->d1 <=> rhs.d1; cmp != 0) return cmp;
-            return this->d2 <=> rhs.d2;
-        }
-        bool operator==(const Guid& rhs) const { return ((this->d1 == rhs.d1) && (this->d2 == rhs.d2)); }
-    };
-
-    constexpr Guid DIRECTX8_ENGINE{0x0, 0x1};
-    constexpr Guid DIRECTX9_ENGINE{0x0, 0x2};
-    constexpr Guid DIRECTX11_ENGINE{0x0, 0x3};
-    constexpr Guid DIRECTX12_ENGINE{0x0, 0x4};
-    constexpr Guid OPENGL_ENGINE{0x0, 0x5};
-    constexpr Guid VULKAN_ENGINE{0x0, 0x6};
-
-    constexpr Guid CUDA_DELIVER{0x1, 0x1};
-    constexpr Guid ROCM_DELIVER{0x1, 0x2};
-    constexpr Guid PIPE_DELIVER{0x1, 0x3};
-    constexpr Guid TCP_DELIVER{0x1, 0x4};
-    constexpr Guid MMAP_DELIVER{0x1, 0x5};
-
-    constexpr Guid TINYOBJLOADER_OBJECT_LOADER{0x2, 0x1};
-    constexpr Guid CGLTF_OBJECT_LOADER{0x2, 0x2};
-    constexpr Guid ASSIMP_OBJECT_LOADER{0x2, 0x3};
-
-    constexpr Guid HOMEBREW_ANIME_LOADER{0x3, 0x1};
-
-#pragma endregion
-
-#pragma region Engine
-
-    struct EngineConfig {
-        bool headless;                   ///< Whether enable headless mode (No Window created).
-        std::basic_string<BSCHAR> title; ///< Window title.
-        std::uint32_t width;             ///< Window width.
-        std::uint32_t height;            ///< Window height.
-        Guid deliver;                    ///< The GUID of deliver.
-    };
-
-    enum class EngineStatus {
-        Ready,   ///< Engine was allocated but not initialized.
-        Running, ///< Engine has been initialized and running.
-        Stop,    ///< Engine is shutdown.
-    };
-
-    class IEngine {
-    public:
-        IEngine();
-        virtual ~IEngine();
-
-    public:
-        virtual Guid GetGuid() const;
-        virtual void Startup(EngineConfig&& config);
-        /**
-         * @brief 
-         * @return True for active exit.
-         */
-        virtual bool Tick();
-        virtual void Shutdown();
-
-    protected:
-        EngineConfig config;
-        EngineStatus status;
-    };
-
-#pragma endregion
-
-#pragma region Deliver
-
-    struct DeliverConfig {
-        Guid engine; ///< The GUID of render engine.
-    };
-
-    enum class DeliverStatus {
-        Ready,   ///< Engine was allocated but not initialized.
-        Running, ///< Engine has been initialized and running.
-        Stop,    ///< Engine is shutdown.
-    };
-
-    class IDeliver {
-    public:
-        IDeliver();
-        virtual ~IDeliver();
-
-    public:
-        virtual Guid GetGuid() const;
-        virtual void Startup(DeliverConfig&& config);
-        virtual void Transmit();
-        virtual void Shutdown();
-
-    protected:
-        DeliverConfig config;
-        DeliverStatus status;
-    };
-
-#pragma endregion
-
-} // namespace Basalt::Shared::Kernel
diff --git a/BasaltPresenter/Shared/basalt/math.cpp b/BasaltPresenter/Shared/basalt/math.cpp
index 8b66f4b..872c124 100644
--- a/BasaltPresenter/Shared/basalt/math.cpp
+++ b/BasaltPresenter/Shared/basalt/math.cpp
@@ -1,5 +1,82 @@
 #include "math.hpp"
+#include <stdexcept> // Include for std::out_of_range
 
 namespace Basalt::Shared::Math {
 
-}
+#pragma region Vector3
+
+    FloatPoint& Vector3::operator[](size_t index) {
+        switch (index) {
+            case 0:
+                return x;
+            case 1:
+                return y;
+            case 2:
+                return z;
+            default:
+                throw std::out_of_range("Vector3 index out of range");
+        }
+    }
+
+    const FloatPoint& Vector3::operator[](size_t index) const {
+        switch (index) {
+            case 0:
+                return x;
+            case 1:
+                return y;
+            case 2:
+                return z;
+            default:
+                throw std::out_of_range("Vector3 index out of range");
+        }
+    }
+
+#pragma endregion
+
+#pragma region Vector4
+
+    FloatPoint& Vector4::operator[](size_t index) {
+        switch (index) {
+            case 0:
+                return x;
+            case 1:
+                return y;
+            case 2:
+                return z;
+            case 3:
+                return w;
+            default:
+                throw std::out_of_range("Vector4 index out of range");
+        }
+    }
+
+    const FloatPoint& Vector4::operator[](size_t index) const {
+        switch (index) {
+            case 0:
+                return x;
+            case 1:
+                return y;
+            case 2:
+                return z;
+            case 3:
+                return w;
+            default:
+                throw std::out_of_range("Vector4 index out of range");
+        }
+    }
+
+#pragma endregion
+
+#pragma region Matrix4x4
+
+    Vector4& Matrix4x4::operator[](size_t index) {
+        return data.at(index);
+    }
+
+    const Vector4& Matrix4x4::operator[](size_t index) const {
+        return data.at(index);
+    }
+
+#pragma endregion
+
+} // namespace Basalt::Shared::Math
\ No newline at end of file
diff --git a/BasaltPresenter/Shared/basalt/math.hpp b/BasaltPresenter/Shared/basalt/math.hpp
index f5463bf..c536d06 100644
--- a/BasaltPresenter/Shared/basalt/math.hpp
+++ b/BasaltPresenter/Shared/basalt/math.hpp
@@ -1,5 +1,6 @@
 #pragma once
 #include <stdexcept>
+#include <array> // Include array for std::array::at
 
 namespace Basalt::Shared::Math {
 
@@ -7,19 +8,26 @@ namespace Basalt::Shared::Math {
 
     struct Vector3 {
         FloatPoint x, y, z;
-    };
-    struct Vector4 {
-        FloatPoint x, y, z, w;
-    };
-    struct Matrix4x4 {
-        Vector4 data[4];
+
+        FloatPoint& operator[](size_t index);
+        const FloatPoint& operator[](size_t index) const;
     };
 
-    //template<typename TEle, size_t VCnt>
-    //    requires(std::integral<TEle> || std::floating_point<TEle>)
-    //struct Vector {
-    //    TEle factor[VCnt];
-    //};
+    struct Vector4 {
+        FloatPoint x, y, z, w;
+
+        FloatPoint& operator[](size_t index);
+        const FloatPoint& operator[](size_t index) const;
+    };
+
+    struct Matrix4x4 {
+    private:
+        std::array<Vector4, 4> data; // Use std::array instead of raw array for .at() method
+
+    public:
+        Vector4& operator[](size_t index);
+        const Vector4& operator[](size_t index) const;
+    };
 
 #define NOT_IMPLEMENTED throw std::logic_error("not implemented function");
 
@@ -31,4 +39,4 @@ namespace Basalt::Shared::Math {
 
 #undef NOT_IMPLEMENTED
 
-} // namespace Basalt::Shared::Math
+} // namespace Basalt::Shared::Math
\ No newline at end of file
diff --git a/BasaltPresenter/Shared/basalt/object_loader.cpp b/BasaltPresenter/Shared/basalt/object_loader.cpp
new file mode 100644
index 0000000..1d728bf
--- /dev/null
+++ b/BasaltPresenter/Shared/basalt/object_loader.cpp
@@ -0,0 +1,13 @@
+#include "object_loader.hpp"
+
+namespace basalt::shared::object_loader {
+
+    IObjectLoader::IObjectLoader() {
+
+    }
+
+    IObjectLoader::~IObjectLoader() {
+
+    }
+
+}
diff --git a/BasaltPresenter/Shared/basalt/object_loader.hpp b/BasaltPresenter/Shared/basalt/object_loader.hpp
new file mode 100644
index 0000000..3425b63
--- /dev/null
+++ b/BasaltPresenter/Shared/basalt/object_loader.hpp
@@ -0,0 +1,13 @@
+#pragma once
+
+namespace basalt::shared::object_loader {
+
+    class IObjectLoader {
+    public:
+        IObjectLoader();
+        virtual ~IObjectLoader();
+
+    protected:
+    };
+
+} // namespace basalt::shared::object_loader
diff --git a/BasaltPresenter/Shared/basalt/pipe_operator.cpp b/BasaltPresenter/Shared/basalt/pipe_operator.cpp
index 76691fa..64ec353 100644
--- a/BasaltPresenter/Shared/basalt/pipe_operator.cpp
+++ b/BasaltPresenter/Shared/basalt/pipe_operator.cpp
@@ -9,9 +9,9 @@
 #include <sys/stat.h>
 #endif
 
-namespace Basalt::Shared {
+namespace basalt::shared::pipe_operator {
 
-    PipeOperator::PipeOperator(const std::basic_string_view<BSCHAR> name) {
+    PipeOperator::PipeOperator(const char_types::BSStringView& name) {
 #if defined(BASALT_OS_WINDOWS)
         // Create Windows pipe name from given name
         auto fullname = std::format(BSTEXT("\\\\.\\pipe\\{}"), name);
diff --git a/BasaltPresenter/Shared/basalt/pipe_operator.hpp b/BasaltPresenter/Shared/basalt/pipe_operator.hpp
index c635b5a..c213076 100644
--- a/BasaltPresenter/Shared/basalt/pipe_operator.hpp
+++ b/BasaltPresenter/Shared/basalt/pipe_operator.hpp
@@ -1,13 +1,15 @@
 #pragma once
 #include "char_types.hpp"
+#include <string>
 #include <string_view>
 
 #if defined(BASALT_OS_WINDOWS)
 #include <Windows.h>
 #else
+// Nothing was included in POSIX
 #endif
 
-namespace Basalt::Shared {
+namespace basalt::shared::pipe_operator {
 
     class PipeOperator {
     public:
@@ -20,7 +22,7 @@ namespace Basalt::Shared {
 #endif
 
     public:
-        PipeOperator(const std::basic_string_view<BSCHAR> name);
+        PipeOperator(const char_types::BSStringView& name);
         ~PipeOperator();
         // Delete copy ctor
         PipeOperator(const PipeOperator&) = delete;
@@ -29,10 +31,30 @@ namespace Basalt::Shared {
         PipeOperator(PipeOperator&&) noexcept;
         PipeOperator& operator=(PipeOperator&& other) noexcept;
 
+    public:
         void Read(void* buffer, size_t size);
         void Write(const void* buffer, size_t size);
 
+        template<typename TPod>
+        void ReadPod(TPod& buffer) {
+            Read(&buffer, sizeof(TPod));
+        }
+        template<typename TPod>
+        void WritePod(const TPod& buffer) {
+            Write(&buffer, sizeof(TPod));
+        }
+        void ReadString(std::string& buffer) {
+            size_t length = 0;
+            ReadPod(length);
+            buffer.resize(length);
+            Read(buffer.data(), length);
+        }
+        void WriteString(std::string_view& buffer) {
+            WritePod(buffer.size());
+            Write(buffer.data(), buffer.size());
+        }
+
     private:
         Handle m_Handle;
     };
-} // namespace Basalt::Shared
+} // namespace basalt::shared::pipe_operator
diff --git a/Document/PROTOCOL.md b/Document/PROTOCOL.md
index f3abe63..2c8cfac 100644
--- a/Document/PROTOCOL.md
+++ b/Document/PROTOCOL.md
@@ -14,14 +14,15 @@ Command protocol is tramsmitted by system named pipe.
 The name of pipe is `\\.\pipe\ed0e3f1f-d214-4880-9562-640bce15e72e` on Windows 
 or `/tmp/ed0e3f1f-d214-4880-9562-640bce15e72e` on POSIX.
 
-|Code|Direction|Comment|
-|:---|:---|:---|
-|`0x61`|Presenter<--Trainer|Handshake code (Are Presenter ready?)|
-|`0x62`|Presenter-->Trainer|Handshake code (Presenter is ready).|
-|`0x01`|Presenter-->Trainer|Data was ready. Please Trainer receive it.|
-|`0x02`|Presenter<--Trainer|Data has been received. Please go into next loop.|
-|`0x71`|Presenter-->Trainer|Actively Stop (Presenter request stop).|
-|`0x71`|Presenter<--Trainer|Stop (Trainer agree the stop request, or trainer actively stop).|
+|Code|Mnemonic|Direction|Comment|
+|:---|:---|:---|:---|
+|`0x61`|HANDSHAKE_REQUEST|Presenter<--Trainer|Handshake code (Are Presenter ready?)|
+|`0x62`|HANDSHAKE_RESPONSE|Presenter-->Trainer|Handshake code (Presenter is ready).|
+|`0x01`|DATA_READY|Presenter-->Trainer|Data was ready by Presenter. Trainer please receive it.|
+|`0x02`|DATA_RECEIVED|Presenter<--Trainer|Data has been received by Trainer. Please go into next loop.|
+|`0x21`|ACTIVELY_STOP|Presenter-->Trainer|Something was happened in Presenter and it want to stop.|
+|`0x71`|STOP_REQUEST|Presenter<--Trainer|Trainer order Presenter to stop and quit.|
+|`0x72`|STOP_RESPONSE|Presenter-->Trainer|Presenster is stopped.|
 
 ### Handshake