diff --git a/Examples/Vulkan/main.c b/Examples/Vulkan/main.c
index 7953e4d..1cdba30 100644
--- a/Examples/Vulkan/main.c
+++ b/Examples/Vulkan/main.c
@@ -1,20 +1,31 @@
 #include <Pulse.h>
 
 #include <stdio.h>
+#include <stdlib.h>
 
-#define CHECK_PULSE_HANDLE_RETVAL(handle, retval) \
-	if(handle == PULSE_NULL_HANDLE) \
-	{ \
-		fprintf(stderr, "Error: %s", PulseVerbaliseErrorType(PulseGetLastErrorType())); \
-		return retval; \
-	} \
+void DebugCallBack(PulseDebugMessageSeverity severity, const char* message)
+{
+	if(severity == PULSE_DEBUG_MESSAGE_SEVERITY_ERROR)
+	{
+		fprintf(stderr, "Pulse Error: %s", message);
+		exit(1);
+	}
+	else if(severity == PULSE_DEBUG_MESSAGE_SEVERITY_WARNING)
+		fprintf(stderr, "Pulse Warning: %s", message);
+	else
+		printf("Pulse: %s", message);
+}
 
 int main(void)
 {
 	PulseBackend backend = PulseLoadBackend(PULSE_BACKEND_VULKAN, PULSE_SHADER_FORMAT_SPIRV_BIT, PULSE_NO_DEBUG);
-	CHECK_PULSE_HANDLE_RETVAL(backend, 1);
+	if(backend == PULSE_NULL_HANDLE)
+	{
+		fprintf(stderr, "Pulse: could not create backend");
+		return 1;
+	}
+	PulseSetDebugCallback(backend, DebugCallBack);
 	PulseDevice device = PulseCreateDevice(backend, NULL, 0);
-	CHECK_PULSE_HANDLE_RETVAL(device, 1);
 
 	PulseDestroyDevice(device);
 	PulseUnloadBackend(backend);
diff --git a/Includes/Pulse.h b/Includes/Pulse.h
index c778521..830d653 100644
--- a/Includes/Pulse.h
+++ b/Includes/Pulse.h
@@ -90,23 +90,6 @@ typedef enum PulseDebugMessageSeverity
 	PULSE_DEBUG_MESSAGE_SEVERITY_ERROR
 } PulseDebugMessageSeverity;
 
-typedef enum PulseDebugMessageType
-{
-	PULSE_DEBUG_MESSAGE_TYPE_GENERAL,
-	PULSE_DEBUG_MESSAGE_TYPE_PERFORMANCE
-} PulseDebugMessageType;
-
-typedef enum PulseErrorType
-{
-	PULSE_ERROR_NONE,
-
-	PULSE_ERROR_BACKENDS_CANDIDATES_SHADER_FORMAT_MISMATCH,
-	PULSE_ERROR_INITIALIZATION_FAILED,
-	PULSE_ERROR_INVALID_HANDLE,
-	PULSE_ERROR_ALLOCATION_FAILED,
-	PULSE_ERROR_DEVICE_LOST,
-} PulseErrorType;
-
 typedef enum PulseImageType
 {
 	PULSE_IMAGE_TYPE_2D,
@@ -264,7 +247,7 @@ typedef struct PulseImageRegion
 } PulseImageRegion;
 
 // Functions
-typedef void (*PulseDebugCallbackPFN)(PulseDebugMessageSeverity, PulseDebugMessageType, const char*);
+typedef void (*PulseDebugCallbackPFN)(PulseDebugMessageSeverity, const char*);
 
 PULSE_API PulseBackend PulseLoadBackend(PulseBackendFlags backend_candidates, PulseShaderFormatsFlags shader_formats_used, PulseDebugLevel debug_level);
 PULSE_API void PulseUnloadBackend(PulseBackend backend);
@@ -289,15 +272,12 @@ PULSE_API void PulseEndGeneralPass(PulseGeneralPass pass);
 PULSE_API PulseFence PulseCreateFence(PulseDevice device);
 PULSE_API void PulseDestroyFence(PulseDevice device, PulseFence fence);
 PULSE_API bool PulseIsFenceReady(PulseDevice device, PulseFence fence);
-PULSE_API bool PulseWaitForFences(PulseDevice device, PulseFence* const* fences, uint32_t fences_count, bool wait_for_all);
+PULSE_API bool PulseWaitForFences(PulseDevice device, const PulseFence* fences, uint32_t fences_count, bool wait_for_all);
 
 PULSE_API PulseComputePipeline PulseCreateComputePipeline(PulseDevice device, const PulseComputePipelineCreateInfo* info);
 PULSE_API void PulseDestroyComputePipeline(PulseDevice device, PulseComputePipeline pipeline);
 PULSE_API void PulseBindComputePipeline(PulseComputePass pass, PulseComputePipeline pipeline);
 
-PULSE_API PulseErrorType PulseGetLastErrorType(); // /!\ Warning /!\ Call to this function resets the internal last error variable
-PULSE_API const char* PulseVerbaliseErrorType(PulseErrorType error);
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/Includes/PulseProfile.h b/Includes/PulseProfile.h
index ecced4d..2a9d32d 100644
--- a/Includes/PulseProfile.h
+++ b/Includes/PulseProfile.h
@@ -44,10 +44,13 @@ extern "C" {
 	#define PULSE_PLAT_WINDOWS
 #elif defined(__linux__)
 	#define PULSE_PLAT_LINUX
+	#define PULSE_PLAT_POSIX
 #elif defined(__APPLE__) && defined(__MACH__)
 	#define PULSE_PLAT_MACOS
+	#define PULSE_PLAT_POSIX
 #elif defined(unix) || defined(__unix__) || defined(__unix)
 	#define PULSE_PLAT_UNIX
+	#define PULSE_PLAT_POSIX
 #else
 	#error "Unknown environment (not Windows, not Linux, not MacOS, not Unix)"
 #endif
diff --git a/Sources/Backends/Vulkan/VulkanCommandList.h b/Sources/Backends/Vulkan/VulkanCommandList.h
new file mode 100644
index 0000000..6433f5d
--- /dev/null
+++ b/Sources/Backends/Vulkan/VulkanCommandList.h
@@ -0,0 +1,32 @@
+// Copyright (C) 2024 kanel
+// This file is part of "Pulse"
+// For conditions of distribution and use, see copyright notice in LICENSE
+
+#ifdef PULSE_ENABLE_VULKAN_BACKEND
+
+#ifndef PULSE_VULKAN_COMMAND_LIST_H_
+#define PULSE_VULKAN_COMMAND_LIST_H_
+
+#include <vulkan/vulkan_core.h>
+
+#include <Pulse.h>
+#include "../../PulseInternal.h"
+#include "VulkanCommandPool.h"
+
+typedef struct VulkanCommandList
+{
+	PulseDevice device;
+	VulkanCommandPool* pool;
+	PulseThreadID thread_id;
+	VkCommandBuffer cmd;
+
+	PulseComputePipeline* compute_pipelines_bound;
+	uint32_t compute_pipelines_bound_capacity;
+	uint32_t compute_pipelines_bound_size;
+} VulkanCommandList;
+
+void VulkanInitCommandList(VulkanCommandPool* pool);
+
+#endif // PULSE_VULKAN_COMMAND_LIST_H_
+
+#endif // PULSE_ENABLE_VULKAN_BACKEND
diff --git a/Sources/Backends/Vulkan/VulkanCommandPool.c b/Sources/Backends/Vulkan/VulkanCommandPool.c
new file mode 100644
index 0000000..a70b8ba
--- /dev/null
+++ b/Sources/Backends/Vulkan/VulkanCommandPool.c
@@ -0,0 +1,47 @@
+// Copyright (C) 2024 kanel
+// This file is part of "Pulse"
+// For conditions of distribution and use, see copyright notice in LICENSE
+
+#include "Vulkan.h"
+#include "VulkanCommandPool.h"
+#include "VulkanDevice.h"
+#include "VulkanQueue.h"
+
+bool VulkanInitCommandPool(PulseDevice device, VulkanCommandPool* pool, VulkanQueueType queue_type)
+{
+	PULSE_CHECK_HANDLE_RETVAL(device, false);
+	PULSE_CHECK_PTR_RETVAL(pool, false);
+
+	VulkanDevice* vulkan_device = VULKAN_RETRIEVE_DRIVER_DATA_AS(device, VulkanDevice*);
+
+	VkCommandPoolCreateInfo create_info = {};
+	create_info.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
+	create_info.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT;
+	create_info.queueFamilyIndex = vulkan_device->queues[queue_type]->queue_family_index;
+	create_info.pNext = PULSE_NULLPTR;
+	CHECK_VK_RETVAL(vulkan_device->vkCreateCommandPool(vulkan_device->device, &create_info, PULSE_NULLPTR, &pool->pool), PULSE_ERROR_INITIALIZATION_FAILED, false);
+
+	pool->thread_id = PulseGetThreadID();
+
+	pool->available_command_lists = PULSE_NULLPTR;
+	pool->available_command_lists_capacity = 0;
+	pool->available_command_lists_size = 0;
+
+	pool->device = device;
+
+	return true;
+}
+
+void VulkanUninitCommandPool(VulkanCommandPool* pool)
+{
+	PULSE_CHECK_PTR(pool);
+
+	VulkanDevice* vulkan_device = VULKAN_RETRIEVE_DRIVER_DATA_AS(pool->device, VulkanDevice*);
+	vulkan_device->vkDestroyCommandPool(vulkan_device->device, pool->pool, PULSE_NULLPTR);
+	if(pool->available_command_lists != PULSE_NULLPTR)
+		free(pool->available_command_lists);
+	pool->thread_id = 0;
+	pool->available_command_lists = PULSE_NULLPTR;
+	pool->available_command_lists_capacity = 0;
+	pool->available_command_lists_size = 0;
+}
diff --git a/Sources/Backends/Vulkan/VulkanCommandPool.h b/Sources/Backends/Vulkan/VulkanCommandPool.h
new file mode 100644
index 0000000..ce4382c
--- /dev/null
+++ b/Sources/Backends/Vulkan/VulkanCommandPool.h
@@ -0,0 +1,35 @@
+// Copyright (C) 2024 kanel
+// This file is part of "Pulse"
+// For conditions of distribution and use, see copyright notice in LICENSE
+
+#ifdef PULSE_ENABLE_VULKAN_BACKEND
+
+#ifndef PULSE_VULKAN_COMMAND_POOL_H_
+#define PULSE_VULKAN_COMMAND_POOL_H_
+
+#include <vulkan/vulkan_core.h>
+
+#include <Pulse.h>
+#include "../../PulseInternal.h"
+#include "VulkanEnums.h"
+
+typedef struct VulkanCommandPool
+{
+	PulseDevice device;
+
+	VkCommandPool pool;
+	VulkanQueueType queue_type;
+
+	PulseThreadID thread_id;
+
+	PulseCommandList* available_command_lists;
+	uint32_t available_command_lists_capacity;
+	uint32_t available_command_lists_size;
+} VulkanCommandPool;
+
+bool VulkanInitCommandPool(PulseDevice device, VulkanCommandPool* pool, VulkanQueueType queue_type);
+void VulkanUninitCommandPool(VulkanCommandPool* pool);
+
+#endif // PULSE_VULKAN_COMMAND_POOL_H_
+
+#endif // PULSE_ENABLE_VULKAN_BACKEND
diff --git a/Sources/Backends/Vulkan/VulkanDevice.h b/Sources/Backends/Vulkan/VulkanDevice.h
index ed8e492..56b1c57 100644
--- a/Sources/Backends/Vulkan/VulkanDevice.h
+++ b/Sources/Backends/Vulkan/VulkanDevice.h
@@ -17,11 +17,14 @@
 #include <Pulse.h>
 
 #include "VulkanEnums.h"
+#include "VulkanCommandPool.h"
 
 struct VulkanQueue;
 
 typedef struct VulkanDevice
 {
+	VulkanCommandPool* cmd_pools;
+
 	struct VulkanQueue* queues[VULKAN_QUEUE_END_ENUM];
 
 	VkPhysicalDeviceFeatures features;
diff --git a/Sources/Backends/Vulkan/VulkanEnums.h b/Sources/Backends/Vulkan/VulkanEnums.h
index 5afa011..a94614f 100644
--- a/Sources/Backends/Vulkan/VulkanEnums.h
+++ b/Sources/Backends/Vulkan/VulkanEnums.h
@@ -1,4 +1,5 @@
 // Copyright (C) 2024 kanel
+//
 // This file is part of "Pulse"
 // For conditions of distribution and use, see copyright notice in LICENSE
 
diff --git a/Sources/Backends/Vulkan/VulkanFence.c b/Sources/Backends/Vulkan/VulkanFence.c
index 727b817..42dcb08 100644
--- a/Sources/Backends/Vulkan/VulkanFence.c
+++ b/Sources/Backends/Vulkan/VulkanFence.c
@@ -2,7 +2,8 @@
 // This file is part of "Pulse"
 // For conditions of distribution and use, see copyright notice in LICENSE
 
-#include "Pulse.h"
+#include <vulkan/vulkan_core.h>
+
 #include "Vulkan.h"
 #include "VulkanDevice.h"
 #include "VulkanFence.h"
@@ -45,15 +46,39 @@ bool VulkanIsFenceReady(PulseDevice device, PulseFence fence)
 	VkResult res = vulkan_device->vkGetFenceStatus(vulkan_device->device, vulkan_fence);
 	switch(res)
 	{
-		case VK_ERROR_DEVICE_LOST: PulseSetInternalError(PULSE_ERROR_DEVICE_LOST); return false;
-		case VK_NOT_READY: return false;
 		case VK_SUCCESS: return true;
 
+		case VK_NOT_READY: return false;
+		case VK_ERROR_DEVICE_LOST: PulseSetInternalError(PULSE_ERROR_DEVICE_LOST); return false;
+
 		default: return false;
 	}
 	return false;
 }
 
-bool VulkanWaitForFences(PulseDevice device, PulseFence *const *fences, uint32_t fences_count, bool wait_for_all)
+bool VulkanWaitForFences(PulseDevice device, const PulseFence* fences, uint32_t fences_count, bool wait_for_all)
 {
+	if(fences_count == 0)
+		return true;
+	VulkanDevice* vulkan_device = VULKAN_RETRIEVE_DRIVER_DATA_AS(device, VulkanDevice*);
+	if(vulkan_device == PULSE_NULLPTR || vulkan_device->device == VK_NULL_HANDLE)
+		return false;
+	VkFence* vulkan_fences = (VkFence*)calloc(fences_count, sizeof(VkFence));
+	PULSE_CHECK_ALLOCATION_RETVAL(vulkan_fences, false);
+	for(uint32_t i = 0; i < fences_count; i++)
+		vulkan_fences[i] = VULKAN_RETRIEVE_DRIVER_DATA_AS(((PulseFence)fences + i), VkFence);
+	VkResult result = vulkan_device->vkWaitForFences(vulkan_device->device, fences_count, vulkan_fences, wait_for_all, UINT64_MAX);
+	free(vulkan_fences);
+	switch(result)
+	{
+		case VK_SUCCESS: break;
+		case VK_TIMEOUT: break;
+
+		case VK_ERROR_DEVICE_LOST: PulseSetInternalError(PULSE_ERROR_DEVICE_LOST); return false;
+		case VK_ERROR_OUT_OF_HOST_MEMORY: PulseSetInternalError(PULSE_ERROR_CPU_ALLOCATION_FAILED); return false;
+		case VK_ERROR_OUT_OF_DEVICE_MEMORY: PulseSetInternalError(PULSE_ERROR_DEVICE_ALLOCATION_FAILED); return false;
+
+		default: break;
+	}
+	return true;
 }
diff --git a/Sources/Backends/Vulkan/VulkanFence.h b/Sources/Backends/Vulkan/VulkanFence.h
index e801a43..e165988 100644
--- a/Sources/Backends/Vulkan/VulkanFence.h
+++ b/Sources/Backends/Vulkan/VulkanFence.h
@@ -7,15 +7,13 @@
 #ifndef PULSE_VULKAN_FENCE_H_
 #define PULSE_VULKAN_FENCE_H_
 
-#include <vulkan/vulkan_core.h>
-
 #include <Pulse.h>
 #include "VulkanDevice.h"
 
 PulseFence VulkanCreateFence(PulseDevice device);
 void VulkanDestroyFence(PulseDevice device, PulseFence fence);
 bool VulkanIsFenceReady(PulseDevice device, PulseFence fence);
-bool VulkanWaitForFences(PulseDevice device, PulseFence *const *fences, uint32_t fences_count, bool wait_for_all);
+bool VulkanWaitForFences(PulseDevice device, const PulseFence* fences, uint32_t fences_count, bool wait_for_all);
 
 #endif // PULSE_VULKAN_FENCE_H_
 
diff --git a/Sources/PulseBackend.c b/Sources/PulseBackend.c
index e29ef12..4c25ec1 100644
--- a/Sources/PulseBackend.c
+++ b/Sources/PulseBackend.c
@@ -2,6 +2,8 @@
 // This file is part of "Pulse"
 // For conditions of distribution and use, see copyright notice in LICENSE
 
+#include <string.h>
+
 #include <Pulse.h>
 #include "PulseInternal.h"
 
@@ -23,11 +25,36 @@ static const PulseCheckBackendSupportPFN backends_supports[] = {
 	PULSE_NULLPTR
 };
 
-static PulseErrorType last_error = PULSE_ERROR_NONE;
-
-void PulseSetInternalError(PulseErrorType error)
+struct
+{
+	char file[1024];
+	char function[1024];
+	PulseErrorType type;
+	int line;
+} last_error = { .file = { 0 }, .function = { 0 }, .type = PULSE_ERROR_NONE, .line = -1 };
+
+void PulseSetInternalErrorBackend(PulseErrorType error, const char* file, const char* function, int line)
+{
+	strcpy(last_error.file, file);
+	strcpy(last_error.function, function);
+	last_error.type = error;
+	last_error.line = line;
+}
+
+void PulseLogErrorBackend(PulseBackend backend, PulseErrorType error, const char* file, const char* function, int line)
+{
+	if(backend == PULSE_NULL_HANDLE)
+		return;
+	if(!backend->PFN_UserDebugCallback)
+		return;
+}
+
+void PulseLogWarningBackend(PulseBackend backend, PulseWarningType warning, const char* file, const char* function, int line)
+{
+}
+
+void PulseLogInfoBackend(PulseBackend backend, const char* message, const char* file, const char* function, int line)
 {
-	last_error = error;
 }
 
 static PulseBackendFlags PulseSelectBackend(PulseBackendFlags backend_candidates, PulseShaderFormatsFlags shader_formats_used)
@@ -47,6 +74,10 @@ static PulseBackendFlags PulseSelectBackend(PulseBackendFlags backend_candidates
 	return PULSE_BACKEND_INVALID;
 }
 
+static const char* PulseVerbaliseErrorType(PulseErrorType error)
+{
+}
+
 static PulseBackend PulseGetBackendFromFlag(PulseBackendBits flag)
 {
 	switch(flag)
@@ -58,9 +89,9 @@ static PulseBackend PulseGetBackendFromFlag(PulseBackendBits flag)
 			case PULSE_BACKEND_VULKAN: return &D3D11Driver;
 		#endif
 
-		default: return PULSE_NULL_HANDLE;
+		default: break;
 	}
-	return PULSE_NULL_HANDLE; // To avoid warnings
+	return PULSE_NULL_HANDLE;
 }
 
 PULSE_API PulseBackend PulseLoadBackend(PulseBackendFlags backend_candidates, PulseShaderFormatsFlags shader_formats_used, PulseDebugLevel debug_level)
@@ -74,6 +105,7 @@ PULSE_API PulseBackend PulseLoadBackend(PulseBackendFlags backend_candidates, Pu
 		return PULSE_NULL_HANDLE;
 	if(!backend->PFN_LoadBackend(debug_level))
 		return PULSE_NULL_HANDLE;
+	backend->PFN_UserDebugCallback = PULSE_NULLPTR;
 	return (PulseBackend)backend;
 }
 
@@ -96,24 +128,8 @@ PULSE_API bool PulseSupportsBackend(PulseBackendFlags backend_candidates, PulseS
 	return false;
 }
 
-PULSE_API PulseErrorType PulseGetLastErrorType()
+PULSE_API void PulseSetDebugCallback(PulseBackend backend, PulseDebugCallbackPFN callback)
 {
-	PulseErrorType error = last_error;
-	last_error = PULSE_ERROR_NONE;
-	return error;
-}
-
-PULSE_API const char* PulseVerbaliseErrorType(PulseErrorType error)
-{
-	switch(error)
-	{
-		case PULSE_ERROR_NONE:                                       return "no error";
-		case PULSE_ERROR_BACKENDS_CANDIDATES_SHADER_FORMAT_MISMATCH: return "no backend candidates support the required shader formats";
-		case PULSE_ERROR_INITIALIZATION_FAILED:                      return "initialization of an object could not be completed for implementation-specific reasons";
-		case PULSE_ERROR_ALLOCATION_FAILED:                          return "an internal allocation failed";
-		case PULSE_ERROR_DEVICE_LOST:                                return "device has been lost";
-
-		default: return "invalid error type";
-	};
-	return PULSE_NULLPTR; // To avoid warnings, should be unreachable
+	PULSE_CHECK_HANDLE(backend);
+	backend->PFN_UserDebugCallback = callback;
 }
diff --git a/Sources/PulseDebug.c b/Sources/PulseDebug.c
new file mode 100644
index 0000000..34a3b5d
--- /dev/null
+++ b/Sources/PulseDebug.c
@@ -0,0 +1,32 @@
+// Copyright (C) 2024 kanel
+// This file is part of "Pulse"
+// For conditions of distribution and use, see copyright notice in LICENSE
+
+#include <PulseProfile.h>
+#include "PulseDebug.h"
+
+const char* PulseVerbaliseErrorType(PulseErrorType error)
+{
+	switch(error)
+	{
+		case PULSE_ERROR_BACKENDS_CANDIDATES_SHADER_FORMAT_MISMATCH: return "no backend candidates support the required shader formats";
+		case PULSE_ERROR_INITIALIZATION_FAILED:                      return "initialization of an object could not be completed for implementation-specific reasons";
+		case PULSE_ERROR_CPU_ALLOCATION_FAILED:                      return "a CPU allocation failed";
+		case PULSE_ERROR_DEVICE_ALLOCATION_FAILED:                   return "a device allocation failed";
+		case PULSE_ERROR_DEVICE_LOST:                                return "device has been lost";
+		case PULSE_ERROR_INVALID_INTERNAL_POINTER:                   return "invalid internal pointer";
+		case PULSE_ERROR_INVALID_HANDLE:                             return "invalid handle";
+
+		default: return "invalid error type";
+	};
+	return PULSE_NULLPTR; // To avoid warnings, should be unreachable
+}
+
+const char* PulseVerbaliseWarningType(PulseWarningType warning)
+{
+	switch(warning)
+	{
+		default: return "invalid warning type";
+	};
+	return PULSE_NULLPTR; // To avoid warnings, should be unreachable
+}
diff --git a/Sources/PulseDebug.h b/Sources/PulseDebug.h
new file mode 100644
index 0000000..bfe9884
--- /dev/null
+++ b/Sources/PulseDebug.h
@@ -0,0 +1,13 @@
+// Copyright (C) 2024 kanel
+// This file is part of "Pulse"
+// For conditions of distribution and use, see copyright notice in LICENSE
+
+#ifndef PULSE_DEBUG_H_
+#define PULSE_DEBUG_H_
+
+#include "PulseEnums.h"
+
+const char* PulseVerbaliseErrorType(PulseErrorType error);
+const char* PulseVerbaliseWarningType(PulseWarningType warning);
+
+#endif
diff --git a/Sources/PulseDefs.h b/Sources/PulseDefs.h
new file mode 100644
index 0000000..50ac73f
--- /dev/null
+++ b/Sources/PulseDefs.h
@@ -0,0 +1,56 @@
+// Copyright (C) 2024 kanel
+// This file is part of "Pulse"
+// For conditions of distribution and use, see copyright notice in LICENSE
+
+#ifndef PULSE_DEFS_H_
+#define PULSE_DEFS_H_
+
+#include <Pulse.h>
+
+#define PulseStaticAllocStack(size) ((char[size]){ 0 })
+
+#define PULSE_CHECK_ALLOCATION_RETVAL(ptr, retval) \
+	do { \
+		if(ptr == PULSE_NULLPTR) \
+		{ \
+			PulseSetInternalError(PULSE_ERROR_CPU_ALLOCATION_FAILED); \
+			return retval; \
+		} \
+	} while(0); \
+
+#define PULSE_CHECK_ALLOCATION(ptr) PULSE_CHECK_ALLOCATION_RETVAL(ptr, )
+
+#define PULSE_CHECK_HANDLE_RETVAL(handle, retval) \
+	do { \
+		if(handle == PULSE_NULL_HANDLE) \
+		{ \
+			PulseSetInternalError(PULSE_ERROR_INVALID_HANDLE); \
+			return retval; \
+		} \
+	} while(0); \
+
+#define PULSE_CHECK_HANDLE(handle) PULSE_CHECK_HANDLE_RETVAL(handle, )
+
+#define PULSE_CHECK_PTR_RETVAL(ptr, retval) \
+	do { \
+		if(ptr == PULSE_NULLPTR) \
+		{ \
+			PulseSetInternalError(PULSE_ERROR_INVALID_INTERNAL_POINTER); \
+			return retval; \
+		} \
+	} while(0); \
+
+#define PULSE_CHECK_PTR(handle) PULSE_CHECK_PTR_RETVAL(handle, )
+
+#define PULSE_LOAD_DRIVER_DEVICE_FUNCTION(fn, _namespace) pulse_device->PFN_##fn = _namespace##fn;
+#define PULSE_LOAD_DRIVER_DEVICE(_namespace) \
+	PULSE_LOAD_DRIVER_DEVICE_FUNCTION(DestroyDevice, _namespace) \
+	PULSE_LOAD_DRIVER_DEVICE_FUNCTION(CreateComputePipeline, _namespace) \
+	PULSE_LOAD_DRIVER_DEVICE_FUNCTION(DestroyComputePipeline, _namespace) \
+	PULSE_LOAD_DRIVER_DEVICE_FUNCTION(BindComputePipeline, _namespace) \
+	PULSE_LOAD_DRIVER_DEVICE_FUNCTION(CreateFence, _namespace) \
+	PULSE_LOAD_DRIVER_DEVICE_FUNCTION(DestroyFence, _namespace) \
+	PULSE_LOAD_DRIVER_DEVICE_FUNCTION(IsFenceReady, _namespace) \
+	PULSE_LOAD_DRIVER_DEVICE_FUNCTION(WaitForFences, _namespace) \
+
+#endif // PULSE_DEFS_H_
diff --git a/Sources/PulseEnums.h b/Sources/PulseEnums.h
new file mode 100644
index 0000000..dcf7b46
--- /dev/null
+++ b/Sources/PulseEnums.h
@@ -0,0 +1,35 @@
+// Copyright (C) 2024 kanel
+// This file is part of "Pulse"
+// For conditions of distribution and use, see copyright notice in LICENSE
+
+#ifndef PULSE_ENUMS_H_
+#define PULSE_ENUMS_H_
+
+typedef enum PulseCommandListState
+{
+	PULSE_COMMAND_LIST_STATE_INVALID,
+	PULSE_COMMAND_LIST_STATE_EMPTY,
+	PULSE_COMMAND_LIST_STATE_RECORDING,
+	PULSE_COMMAND_LIST_STATE_READY,
+	PULSE_COMMAND_LIST_STATE_SENT
+} PulseCommandListState;
+
+typedef enum PulseErrorType
+{
+	PULSE_ERROR_NONE,
+
+	PULSE_ERROR_DEVICE_LOST,
+	PULSE_ERROR_INVALID_HANDLE,
+	PULSE_ERROR_INVALID_INTERNAL_POINTER,
+	PULSE_ERROR_INITIALIZATION_FAILED,
+	PULSE_ERROR_CPU_ALLOCATION_FAILED,
+	PULSE_ERROR_DEVICE_ALLOCATION_FAILED,
+	PULSE_ERROR_BACKENDS_CANDIDATES_SHADER_FORMAT_MISMATCH,
+} PulseErrorType;
+
+typedef enum PulseWarningType
+{
+	PULSE_WARNING_NONE,
+} PulseWarningType;
+
+#endif
diff --git a/Sources/PulseInternal.h b/Sources/PulseInternal.h
index 8ce3c4d..ac20d50 100644
--- a/Sources/PulseInternal.h
+++ b/Sources/PulseInternal.h
@@ -7,48 +7,11 @@
 
 #include <Pulse.h>
 
-#ifdef __cplusplus
-extern "C" {
-#endif
+#include "PulsePFNs.h"
+#include "PulseDefs.h"
+#include "PulseEnums.h"
 
-#define PulseStaticAllocStack(size) ((char[size]){ 0 })
-
-#define PULSE_CHECK_ALLOCATION_RETVAL(ptr, retval) \
-	do { \
-		if(ptr == PULSE_NULLPTR) \
-		{ \
-			PulseSetInternalError(PULSE_ERROR_ALLOCATION_FAILED); \
-			return retval; \
-		} \
-	} while(0); \
-
-#define PULSE_CHECK_ALLOCATION(ptr) PULSE_CHECK_ALLOCATION_RETVAL(ptr, )
-
-#define PULSE_CHECK_HANDLE_RETVAL(handle, retval) \
-	do { \
-		if(handle == PULSE_NULL_HANDLE) \
-		{ \
-			PulseSetInternalError(PULSE_ERROR_INVALID_HANDLE); \
-			return retval; \
-		} \
-	} while(0); \
-
-#define PULSE_CHECK_HANDLE(handle) PULSE_CHECK_HANDLE_RETVAL(handle, )
-
-typedef PulseBackendFlags (*PulseCheckBackendSupportPFN)(PulseBackendFlags, PulseShaderFormatsFlags);
-
-typedef bool (*PulseLoadBackendPFN)(PulseDebugLevel);
-typedef void (*PulseUnloadBackendPFN)(PulseBackend);
-typedef PulseDevice (*PulseCreateDevicePFN)(PulseBackend, PulseDevice*, uint32_t);
-
-typedef void (*PulseDestroyDevicePFN)(PulseDevice);
-typedef PulseComputePipeline (*PulseCreateComputePipelinePFN)(PulseDevice, const PulseComputePipelineCreateInfo*);
-typedef void (*PulseBindComputePipelinePFN)(PulseComputePass, PulseComputePipeline);
-typedef void (*PulseDestroyComputePipelinePFN)(PulseDevice, PulseComputePipeline);
-typedef PulseFence (*PulseCreateFencePFN)(PulseDevice device);
-typedef void (*PulseDestroyFencePFN)(PulseDevice device, PulseFence fence);
-typedef bool (*PulseIsFenceReadyPFN)(PulseDevice device, PulseFence fence);
-typedef bool (*PulseWaitForFencesPFN)(PulseDevice device, PulseFence* const* fences, uint32_t fences_count, bool wait_for_all);
+typedef uint64_t PulseThreadID;
 
 typedef struct PulseBackendHandler
 {
@@ -61,8 +24,32 @@ typedef struct PulseBackendHandler
 	PulseBackendFlags backend;
 	PulseShaderFormatsFlags supported_shader_formats;
 	void* driver_data;
+	PulseDebugCallbackPFN PFN_UserDebugCallback;
 } PulseBackendHandler;
 
+typedef struct PulseBufferHandler
+{
+	void* driver_data;
+} PulseBufferHandler;
+
+typedef struct PulseCommandListHandler
+{
+	PulseDevice device;
+	void* driver_data;
+	PulseCommandListState state;
+	bool is_compute_pipeline_bound;
+} PulseCommandListHandler;
+
+typedef struct PulseComputePassHandler
+{
+	void* driver_data;
+} PulseComputePassHandler;
+
+typedef struct PulseComputePipelineHandler
+{
+	void* driver_data;
+} PulseComputePipelineHandler;
+
 typedef struct PulseDeviceHandler
 {
 	// PFNs
@@ -85,18 +72,25 @@ typedef struct PulseFenceHandler
 	void* driver_data;
 } PulseFenceHandler;
 
-void PulseSetInternalError(PulseErrorType error);
+typedef struct PulseGeneralPassHandler
+{
+	void* driver_data;
+} PulseGeneralPassHandler;
 
-#define PULSE_LOAD_DRIVER_DEVICE_FUNCTION(fn, _namespace) pulse_device->PFN_##fn = _namespace##fn;
-#define PULSE_LOAD_DRIVER_DEVICE(_namespace) \
-	PULSE_LOAD_DRIVER_DEVICE_FUNCTION(DestroyDevice, _namespace) \
-	PULSE_LOAD_DRIVER_DEVICE_FUNCTION(CreateComputePipeline, _namespace) \
-	PULSE_LOAD_DRIVER_DEVICE_FUNCTION(DestroyComputePipeline, _namespace) \
-	PULSE_LOAD_DRIVER_DEVICE_FUNCTION(BindComputePipeline, _namespace) \
-	PULSE_LOAD_DRIVER_DEVICE_FUNCTION(CreateFence, _namespace) \
-	PULSE_LOAD_DRIVER_DEVICE_FUNCTION(DestroyFence, _namespace) \
-	PULSE_LOAD_DRIVER_DEVICE_FUNCTION(IsFenceReady, _namespace) \
-	PULSE_LOAD_DRIVER_DEVICE_FUNCTION(WaitForFences, _namespace) \
+typedef struct PulseImageHandler
+{
+	void* driver_data;
+} PulseImageHandler;
+
+PulseThreadID PulseGetThreadID();
+
+void PulseLogErrorBackend(PulseBackend backend, PulseErrorType error, const char* file, const char* function, int line);
+void PulseLogWarningBackend(PulseBackend backend, PulseWarningType warning, const char* file, const char* function, int line);
+void PulseLogInfoBackend(PulseBackend backend, const char* message, const char* file, const char* function, int line);
+
+#define PulseLogError(backend, type) PulseSetInternalErrorBackend(backend, type, __FILE__, __FUNCTION__, __LINE__)
+#define PulseLogWarning(backend, type) PulseSetInternalErrorBackend(backend, type, __FILE__, __FUNCTION__, __LINE__)
+#define PulseLogInfo(backend, msg) PulseSetInternalErrorBackend(backend, msg, __FILE__, __FUNCTION__, __LINE__)
 
 #ifdef PULSE_ENABLE_VULKAN_BACKEND
 	extern PulseBackendHandler VulkanDriver;
@@ -105,8 +99,4 @@ void PulseSetInternalError(PulseErrorType error);
 	extern PulseBackendHandler D3D11Driver;
 #endif // PULSE_ENABLE_D3D11_BACKEND
 
-#ifdef __cplusplus
-}
-#endif
-
 #endif // PULSE_INTERNAL_H_
diff --git a/Sources/PulsePFNs.h b/Sources/PulsePFNs.h
new file mode 100644
index 0000000..b6ed4a0
--- /dev/null
+++ b/Sources/PulsePFNs.h
@@ -0,0 +1,25 @@
+// Copyright (C) 2024 kanel
+// This file is part of "Pulse"
+// For conditions of distribution and use, see copyright notice in LICENSE
+
+#ifndef PULSE_PFNS_H_
+#define PULSE_PFNS_H_
+
+#include <Pulse.h>
+
+typedef PulseBackendFlags (*PulseCheckBackendSupportPFN)(PulseBackendFlags, PulseShaderFormatsFlags);
+
+typedef bool (*PulseLoadBackendPFN)(PulseDebugLevel);
+typedef void (*PulseUnloadBackendPFN)(PulseBackend);
+typedef PulseDevice (*PulseCreateDevicePFN)(PulseBackend, PulseDevice*, uint32_t);
+
+typedef void (*PulseDestroyDevicePFN)(PulseDevice);
+typedef PulseComputePipeline (*PulseCreateComputePipelinePFN)(PulseDevice, const PulseComputePipelineCreateInfo*);
+typedef void (*PulseBindComputePipelinePFN)(PulseComputePass, PulseComputePipeline);
+typedef void (*PulseDestroyComputePipelinePFN)(PulseDevice, PulseComputePipeline);
+typedef PulseFence (*PulseCreateFencePFN)(PulseDevice);
+typedef void (*PulseDestroyFencePFN)(PulseDevice, PulseFence);
+typedef bool (*PulseIsFenceReadyPFN)(PulseDevice, PulseFence);
+typedef bool (*PulseWaitForFencesPFN)(PulseDevice, const PulseFence*, uint32_t, bool);
+
+#endif // PULSE_PFNS_H_
diff --git a/Sources/PulsePosix.c b/Sources/PulsePosix.c
new file mode 100644
index 0000000..5906f48
--- /dev/null
+++ b/Sources/PulsePosix.c
@@ -0,0 +1,15 @@
+// Copyright (C) 2024 kanel
+// This file is part of "Pulse"
+// For conditions of distribution and use, see copyright notice in LICENSE
+
+#include "PulseInternal.h"
+#include "PulsePosix.h"
+
+#ifdef PULSE_PLAT_POSIX
+
+PulseThreadID PulseGetThreadID()
+{
+	return (PulseThreadID)pthread_self();
+}
+
+#endif // PULSE_PLAT_POSIX
diff --git a/Sources/PulsePosix.h b/Sources/PulsePosix.h
new file mode 100644
index 0000000..d2c55f6
--- /dev/null
+++ b/Sources/PulsePosix.h
@@ -0,0 +1,17 @@
+// Copyright (C) 2024 kanel
+// This file is part of "Pulse"
+// For conditions of distribution and use, see copyright notice in LICENSE
+
+#ifndef PULSE_POSIX_H_
+#define PULSE_POSIX_H_
+
+#include <PulseProfile.h>
+#include "PulseInternal.h"
+
+#ifdef PULSE_PLAT_POSIX
+
+#include <pthread.h>
+
+#endif // PULSE_PLAT_WINDOWS
+
+#endif // PULSE_POSIX_H_
diff --git a/Sources/PulseWindows.c b/Sources/PulseWindows.c
new file mode 100644
index 0000000..1da1a51
--- /dev/null
+++ b/Sources/PulseWindows.c
@@ -0,0 +1,15 @@
+// Copyright (C) 2024 kanel
+// This file is part of "Pulse"
+// For conditions of distribution and use, see copyright notice in LICENSE
+
+#include "PulseInternal.h"
+#include "PulseWindows.h"
+
+#ifdef PULSE_PLAT_WINDOWS
+
+PulseThreadID PulseGetThreadID()
+{
+	return (PulseThreadID)GetCurrentThreadId();
+}
+
+#endif // PULSE_PLAT_WINDOWS
diff --git a/Sources/PulseWindows.h b/Sources/PulseWindows.h
new file mode 100644
index 0000000..6290e15
--- /dev/null
+++ b/Sources/PulseWindows.h
@@ -0,0 +1,18 @@
+// Copyright (C) 2024 kanel
+// This file is part of "Pulse"
+// For conditions of distribution and use, see copyright notice in LICENSE
+
+#ifndef PULSE_WINDOWS_H_
+#define PULSE_WINDOWS_H_
+
+#include <PulseProfile.h>
+#include "PulseInternal.h"
+
+#ifdef PULSE_PLAT_WINDOWS
+
+#define NOMINMAX
+#include <windows.h>
+
+#endif // PULSE_PLAT_WINDOWS
+
+#endif // PULSE_WINDOWS_H_
diff --git a/xmake.lua b/xmake.lua
index 1203901..2028185 100644
--- a/xmake.lua
+++ b/xmake.lua
@@ -41,7 +41,7 @@ end
 add_rules("mode.debug", "mode.release")
 
 add_includedirs("Includes")
-set_languages("c99", "cxx20")
+set_languages("c11", "cxx20")
 set_encodings("utf-8")
 set_warnings("allextra")