diff --git a/include/arc/engine/ecs.h b/include/arc/engine/ecs.h
new file mode 100644
index 0000000..e69de29
diff --git a/include/arc/engine/engine.h b/include/arc/engine/engine.h
new file mode 100644
index 0000000..01fc9f5
--- /dev/null
+++ b/include/arc/engine/engine.h
@@ -0,0 +1,27 @@
+#ifndef ARC_ENGINE_H_
+#define ARC_ENGINE_H_
+
+#include "arc/graphics/window.h"
+#include "arc/graphics/renderer.h"
+
+typedef struct ARC_EngineData {
+    ARC_Window   *window;
+    ARC_Renderer *renderer;
+
+} ARC_EngineData;
+
+//NOTE: most work below is temp, and will change once I figure out a better way to write this header
+
+void ARC_EngineData_Create(ARC_EngineData **data);
+void ARC_EngineData_Destroy(ARC_EngineData *data);
+
+/**
+ * @brief runs ARC_Engine
+ *
+ * @param data engine data that will be used
+ *             data must be created before this function
+ *             and must be destroyed after this function
+ */
+void ARC_Engine_Run(ARC_EngineData *data);
+
+#endif // !ARC_ENGINE_H_
diff --git a/include/arc/graphics/data.h b/include/arc/graphics/data.h
deleted file mode 100644
index b04c3c3..0000000
--- a/include/arc/graphics/data.h
+++ /dev/null
@@ -1,5 +0,0 @@
-
-#ifndef ARC_GRAPHICS_DATA_H_
-#define ARC_GRAPHICS_DATA_H_
-
-#endif //ARC_GRAPHICS_DATA_H_
\ No newline at end of file
diff --git a/include/arc/graphics/renderer.h b/include/arc/graphics/renderer.h
new file mode 100644
index 0000000..f97755f
--- /dev/null
+++ b/include/arc/graphics/renderer.h
@@ -0,0 +1,24 @@
+#ifndef ARC_GRAPHICS_RENDERER_H_
+#define ARC_GRAPHICS_RENDERER_H_
+
+typedef struct ARC_Renderer ARC_Renderer;
+
+typedef struct ARC_RenderInfo ARC_RenderInfo;
+
+/**
+ * @brief creates ARC_Renderer type
+ *
+ * @note the parameter data is determined by which graphics library you are using
+ *       please refer to the graphics library section to see what needs to be passed
+ *
+ * @param renderer ARC_Window to initialize
+ * @param data     Data to create ARC_Window
+ */
+void ARC_Renderer_Create(ARC_Renderer **renderer, void *data);
+
+/**
+ * @brief destroys ARC_Renderer type
+ */
+void ARC_Renderer_Destroy(ARC_Renderer *renderer);
+
+#endif // !ARC_GRAPHICS_RENDERER_H_
diff --git a/include/arc/graphics/sdl/renderer.h b/include/arc/graphics/sdl/renderer.h
new file mode 100644
index 0000000..48248e4
--- /dev/null
+++ b/include/arc/graphics/sdl/renderer.h
@@ -0,0 +1,22 @@
+#ifndef ARC_SDL_RENDERER_H_
+#define ARC_SDL_RENDERER_H_
+
+#ifdef ARC_SDL
+
+#include <SDL.h>
+
+/**
+ * @brief struct for info needed to create SDL_Renderer
+ *
+ * @note this is what needs to be passed into the data parameter for ARC_Renderer_Create
+ */
+
+struct ARC_RenderInfo {
+     ARC_Window *window;
+     int         index;
+     Uint32      flags;
+} ARC_RenderInfo;
+
+#endif // ARC_SDL
+
+#endif // ARC_SDL_RENDERER_H_
diff --git a/include/arc/graphics/sdl/window.h b/include/arc/graphics/sdl/window.h
new file mode 100644
index 0000000..a39f826
--- /dev/null
+++ b/include/arc/graphics/sdl/window.h
@@ -0,0 +1,25 @@
+#ifndef ARC_SDL_RENDERER_H_
+#define ARC_SDL_RENDERER_H_
+
+#ifdef ARC_SDL
+
+#include <SDL.h>
+
+/**
+ * @brief struct for info needed to create SDL_Window
+ *
+ * @note this is what needs to be passed into the data parameter for ARC_Window_Create
+ */
+
+struct ARC_WindowInfo {
+    char   *title;
+    int     x;
+    int     y;
+    int     w;
+    int     h;
+    Uint32  flags;
+} ARC_WindowInfo;
+
+#endif // ARC_SDL
+
+#endif // ARC_SDL_RENDERER_H_
diff --git a/include/arc/graphics/window.h b/include/arc/graphics/window.h
new file mode 100644
index 0000000..5859af2
--- /dev/null
+++ b/include/arc/graphics/window.h
@@ -0,0 +1,24 @@
+#ifndef ARC_GRAPHICS_WINDOW_H_
+#define ARC_GRAPHICS_WINDOW_H_
+
+typedef struct ARC_Window ARC_Window;
+
+typedef struct ARC_WindowInfo ARC_WindowInfo;
+
+/**
+ * @brief creates ARC_Window type
+ *
+ * @note the parameter data is determined by which graphics library you are using
+ *       please refer to the graphics library section to see what needs to be passed
+ *
+ * @param window ARC_Window to initialize
+ * @param data   Data to create ARC_Window
+ */
+void ARC_Window_Create(ARC_Window **window, void *data);
+
+/**
+ * @brief destroys ARC_Window type
+ */
+void ARC_Window_Destroy(ARC_Window *window);
+
+#endif // !ARC_GRAPHICS_WINDOW_H_
diff --git a/include/arc/math/rectangle.h b/include/arc/math/rectangle.h
new file mode 100644
index 0000000..e69de29
diff --git a/include/arc/math/vector2.h b/include/arc/math/vector2.h
new file mode 100644
index 0000000..61fd6da
--- /dev/null
+++ b/include/arc/math/vector2.h
@@ -0,0 +1,30 @@
+#ifndef ARC_MATH_VECTOR2_H_
+#define ARC_MATH_VECTOR2_H_
+
+#include <stdint.h>
+
+typedef struct ARC_Vector2 {
+    int32_t x, y;
+} ARC_Vector2;
+
+typedef struct ARC_UVector2 {
+    uint32_t x, y;
+} ARC_UVector2;
+
+typedef struct ARC_FVector2 {
+    float x, y;
+} ARC_FVector2;
+
+typedef struct ARC_DVector2 {
+    double x, y;
+} ARC_DVector2;
+
+typedef struct ARC_LVector2 {
+    int64_t x, y;
+} ARC_LVector2;
+
+typedef struct ARC_ULVector2 {
+    uint64_t x, y;
+} ARC_ULVector2;
+
+#endif // ARC_MATH_VECTOR2_H_
diff --git a/include/arc/math/vector3.h b/include/arc/math/vector3.h
new file mode 100644
index 0000000..e69de29
diff --git a/include/arc/std/config.h b/include/arc/std/config.h
index c05e9e4..16321f9 100644
--- a/include/arc/std/config.h
+++ b/include/arc/std/config.h
@@ -138,4 +138,4 @@ void *ARC_Config_GetReference(ARC_Config *config, char *data, ARC_StringSubstr *
 
 #ifdef ARC_DEFAULT_CONFIG
 #include "defaults/config.h"
-#endif //ARC_DEFAULT_CONFIG
\ No newline at end of file
+#endif //ARC_DEFAULT_CONFIG
diff --git a/include/arc/std/errno.h b/include/arc/std/errno.h
index 90e3612..398a9ef 100644
--- a/include/arc/std/errno.h
+++ b/include/arc/std/errno.h
@@ -27,8 +27,10 @@ extern "C" {
 #ifdef ARC_DEBUG
 #   include <stdio.h>
 #   define ARC_DEBUG_LOG(ERR, STR, ...) printf("[ERROR %d] " STR "\n", ERR, __VA_ARGS__)
+#   define ARC_DEBUG_ERR(STR) printf("[ERROR %d]" STR "\n", ERR)
 #else
 #   define ARC_DEBUG_LOG(ERR, STR, ...)
+#   define ARC_DEBUG_ERR(STR)
 #endif
 
 #define ARC_ERR_CHECK(FUNC) FUNC; if(arc_errno){ ARC_DEBUG_LOG(arc_errno, "%s", #FUNC); return; }
diff --git a/include/arc/std/vector.h b/include/arc/std/vector.h
index ca34029..22ec4ec 100644
--- a/include/arc/std/vector.h
+++ b/include/arc/std/vector.h
@@ -25,7 +25,8 @@ typedef int8_t (* ARC_Vector_CompareDataFn)(void *a, void *b);
 /**
  * @brief creates ARC_Vector type
  *
- * @param config  ARC_Vector to initialize
+ * @param vector   ARC_Vector to initialize
+ * @param dataSize size of type the vector will store
  */
 void ARC_Vector_Create(ARC_Vector **vector, uint32_t dataSize);
 
diff --git a/src/engine/ecs.c b/src/engine/ecs.c
new file mode 100644
index 0000000..e69de29
diff --git a/src/engine/engine.c b/src/engine/engine.c
new file mode 100644
index 0000000..c593d1d
--- /dev/null
+++ b/src/engine/engine.c
@@ -0,0 +1,43 @@
+#include "arc/engine/engine.h"
+#include <stdlib.h>
+
+//NOTE: this is very temp, mostly to get smthn running so I can test out different ideas
+#ifdef ARC_SDL
+#include <SDL.h>
+#include "arc/graphics/sdl/rerderer.h"
+#endif
+
+void ARC_EngineData_Create(ARC_EngineData **data){
+    *data = (ARC_EngineData *)malloc(sizeof(ARC_EngineData));
+    (*data)->window   = NULL;
+    (*data)->renderer = NULL;
+
+    ARC_WindowInfo windowInfo;
+    ARC_RenderInfo renderInfo;
+
+#ifdef ARC_SDL
+    if(SDL_Init(SDL_INIT_VIDEO) < 0){
+        printf("Error: initializing SDL\nSDL Error: ", SDL_GetError());
+        free(*data);
+        return;
+    }
+
+    windowInfo = { "title", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1920, 1080, 0 };
+    renderInfo = { (*data)->window, -1, SDL_RENDERER_ACCELERATED }
+#endif // ARC_SDL
+
+    ARC_Window_Create(&((*data)->window), &windowInfo);
+    //TODO: handle arc_errno errors here
+    ARC_Renderer_Create(&((*data)->renderer), &renderInfo);
+    //TODO: handle arc_errno errors here
+}
+
+void ARC_EngineData_Destroy(ARC_EngineData *data){
+#ifdef ARC_SDL
+    ARC_Renderer_Destroy(data->renderer);
+    ARC_Renderer_Destroy(data->window);
+#endif // ARC_SDL
+}
+
+void ARC_Engine_Run(ARC_EngineData *data){
+}
diff --git a/src/graphics/sdl/renderer.c b/src/graphics/sdl/renderer.c
new file mode 100644
index 0000000..04eec4d
--- /dev/null
+++ b/src/graphics/sdl/renderer.c
@@ -0,0 +1,29 @@
+#ifdef ARC_SDL
+#include "arc/graphics/renderer.h"
+#include "arc/graphics/window.h"
+#include "arc/std/errno.h"
+
+typedef SDL_Renderer ARC_Renderer;
+
+ARC_Renderer_Create(ARC_Renderer **renderer, void *data){
+    if(!data){
+        arc_errno = ARC_ERRNO_NULL;
+        ARC_DEBUG_ERR(arc_errno, "ARC_Renderer_Create(**renderer, NULL)");
+        return;
+    }
+
+    ARC_RenderInfo *info = (ARC_RenderInfo *)data;
+
+    *renderer = SDL_CreateRenderer(info->window, info->index, info->flags);
+
+    if(!renderer){
+        arc_errno = ARC_ERRNO_NULL;
+        ARC_DEBUG_LOG(arc_errno, "SDL_CreateRenderer(%p, %d, %u);", info->window, info->index, info->flags);
+    }
+}
+
+void ARC_Renderer_Destroy(ARC_Renderer *renderer){
+    SDL_DestroyRenderer((SDL_Renderer *) renderer);
+}
+
+#endif //ARC_SDL
diff --git a/src/graphics/sdl/window.c b/src/graphics/sdl/window.c
new file mode 100644
index 0000000..08f6c51
--- /dev/null
+++ b/src/graphics/sdl/window.c
@@ -0,0 +1,28 @@
+#ifdef ARC_SDL
+#include "arc/graphics/window.h"
+#include "arc/std/errno.h"
+
+typedef SDL_Window ARC_Window;
+
+void ARC_Window_Create(ARC_Window **window, void *data){
+    if(!data){
+        arc_errno = ARC_ERRNO_NULL;
+        ARC_DEBUG_ERR(arc_errno, "ARC_Window_Create(**window, NULL)");
+        return;
+    }
+
+    ARC_WindowInfo *info = (ARC_WindowInfo *)data;
+
+    *window = SDL_CreateWindow((const char *)info->title, info->x, info->y, info->w, info->h, info->flags);
+
+    if(!window){
+        arc_errno = ARC_ERRNO_NULL;
+        ARC_DEBUG_LOG(arc_errno, "SDL_CreateWindow(%s, %d, %d, %d, %d, %x);", info->title, info->x, info->y, info->w, info->h, info->flags);
+    }
+}
+
+void ARC_Window_Destroy(ARC_Window *window){
+    SDL_DestroyWindow((SDL_Window *) window);
+}
+
+#endif //ARC_SDL
diff --git a/tests/vector_test.c b/tests/vector_test.c
new file mode 100644
index 0000000..e69de29