diff --git a/openVulkanoCpp/Host/GraphicsAppManager.cpp b/openVulkanoCpp/Host/GraphicsAppManager.cpp
index 1c467d4..10c76fc 100644
--- a/openVulkanoCpp/Host/GraphicsAppManager.cpp
+++ b/openVulkanoCpp/Host/GraphicsAppManager.cpp
@@ -32,6 +32,24 @@ namespace openVulkanoCpp
 		window->SetWindowHandler(this);
 	}
 
+	GraphicsAppManager::GraphicsAppManager(IGraphicsApp* app, IWindow* window, RenderAPI::RenderApi renderApi)
+			: app(app), renderApi(renderApi)
+	{
+		Utils::SetThreadName("Main");
+		Logger::SetupLogger();
+		if (!app)
+		{
+			constexpr auto msg = "The app must not be null!";
+			Logger::MANAGER->error(msg);
+			throw std::runtime_error(msg);
+		}
+		//platform = std::unique_ptr<IPlatform>(PlatformProducer::CreatePlatform(renderApi));
+		this->window = window;
+		renderer = std::unique_ptr<IRenderer>(PlatformProducer::CreateRenderManager(renderApi));
+		app->SetGraphicsAppManager(this);
+		window->SetWindowHandler(this);
+	}
+
 	GraphicsAppManager::~GraphicsAppManager() noexcept
 	{
 		if (windowTitleFormat.empty()) return;
@@ -73,7 +91,7 @@ namespace openVulkanoCpp
 		{
 			Logger::MANAGER->info("Initializing ...");
 			app->Init();
-			platform->Init();
+			if (platform) platform->Init();
 			window->Init(renderApi);
 			//TODO restore window settings if there are any set
 			renderer->Init(static_cast<IGraphicsAppManager*>(this), window);
@@ -100,7 +118,7 @@ namespace openVulkanoCpp
 
 	void GraphicsAppManager::LoopTick()
 	{
-		platform->Tick();
+		if (platform) platform->Tick();
 		if (paused)
 		{ // The rendering is paused
 			// No need to burn cpu time if the app is paused
diff --git a/openVulkanoCpp/Host/GraphicsAppManager.hpp b/openVulkanoCpp/Host/GraphicsAppManager.hpp
index 9076acf..8bab42b 100644
--- a/openVulkanoCpp/Host/GraphicsAppManager.hpp
+++ b/openVulkanoCpp/Host/GraphicsAppManager.hpp
@@ -39,6 +39,8 @@ namespace openVulkanoCpp
 	public:
 		explicit GraphicsAppManager(IGraphicsApp* app, RenderAPI::RenderApi renderApi = RenderAPI::Vulkan);
 
+		explicit GraphicsAppManager(IGraphicsApp* app, IWindow* window, RenderAPI::RenderApi renderApi = RenderAPI::Vulkan);
+
 		~GraphicsAppManager() noexcept override;
 
 	public: // Getter
@@ -62,7 +64,7 @@ namespace openVulkanoCpp
 	public:
 		void Run() override;
 
-	private:
+	//private:
 		void StartUp();
 
 		void Loop();