diff --git a/src/main.cpp b/src/main.cpp
index bc237c7..3f26e48 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,6 +1,40 @@
-#include <glad/glad.h> 
+#include <glad/glad.h>
 #include <GLFW/glfw3.h>
+#include <cassert>
 
-int main(void){
+#define UNUSED(x) (void)(x)
+
+void framebuffer_size_callback(GLFWwindow* window, int width, int height);
+
+int main(void) {
+  int tmp = 0;
+
+  glfwInit();
+  glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
+  glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
+  glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+
+  GLFWwindow *window = glfwCreateWindow(800, 600, "LearnOpenGL", NULL, NULL);
+  assert(window != NULL && "Window Failed");
+  glfwMakeContextCurrent(window);
+
+  tmp = gladLoadGLLoader((GLADloadproc)glfwGetProcAddress);
+  assert(tmp && "Failed to init glad");
+
+  glViewport(0, 0, 800, 600);
+  glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
+
+  while(!glfwWindowShouldClose(window))
+    {
+      glfwSwapBuffers(window);
+      glfwPollEvents();
+    }
+
+  glfwTerminate();
   return 0;
 }
+
+void framebuffer_size_callback(GLFWwindow* window, int width, int height) {
+  UNUSED(window);
+  glViewport(0, 0, width, height);
+}