diff --git a/complex.cpp b/complex.cpp
index 771cdbc..4f72495 100644
--- a/complex.cpp
+++ b/complex.cpp
@@ -16,5 +16,5 @@ int main(int argc, char** argcv){
 
     cout << c1 << "*" << c2 << "=" << c3 << endl;
     cout << c1 << "+" << c2 << "=" << c4 << endl;
-
+    
 }
\ No newline at end of file
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 82bfe4a..67aa2e3 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1 +1,2 @@
-add_subdirectory(core)
\ No newline at end of file
+add_subdirectory(core)
+add_subdirectory(opengl)
\ No newline at end of file
diff --git a/src/core/cpu/types.hpp b/src/core/cpu/types.hpp
index c25cd5f..6c78077 100644
--- a/src/core/cpu/types.hpp
+++ b/src/core/cpu/types.hpp
@@ -2,7 +2,7 @@
 #define CORE_CPU_TYPES_H
 
     /*
-    * Types for x86 arquitectures
+    * Types for x86 architectures
     */
     #if defined(__x86_64__)
         //Signed type alias
diff --git a/src/core/cpu/utils.hpp b/src/core/cpu/utils.hpp
index 53035b8..c15989c 100644
--- a/src/core/cpu/utils.hpp
+++ b/src/core/cpu/utils.hpp
@@ -4,8 +4,6 @@
 #include <iostream>
 #include "types.hpp"
 
-using namespace::std;
-
 
 namespace Core {
     namespace Cpu {
diff --git a/src/opengl/CMakeLists.txt b/src/opengl/CMakeLists.txt
new file mode 100644
index 0000000..d5cd85d
--- /dev/null
+++ b/src/opengl/CMakeLists.txt
@@ -0,0 +1,5 @@
+find_package(glfw3 3.3 REQUIRED)
+find_package(OpenGL REQUIRED)
+add_executable(gl1 gl1.cpp)
+target_link_libraries(gl1 glfw)
+target_link_libraries(gl1 OpenGL::GL)
diff --git a/src/opengl/gl1.cpp b/src/opengl/gl1.cpp
new file mode 100644
index 0000000..1ba9af8
--- /dev/null
+++ b/src/opengl/gl1.cpp
@@ -0,0 +1,43 @@
+#include <GLFW/glfw3.h>
+
+int main(void)
+{
+    GLFWwindow* window;
+
+    /* Initialize the library */
+    if (!glfwInit())
+        return -1;
+
+    /* Create a windowed mode window and its OpenGL context */
+    window = glfwCreateWindow(640, 480, "Hello World", NULL, NULL);
+    if (!window)
+    {
+        glfwTerminate();
+        return -1;
+    }
+
+    /* Make the window's context current */
+    glfwMakeContextCurrent(window);
+
+    /* Loop until the user closes the window */
+    while (!glfwWindowShouldClose(window))
+    {
+        /* Render here */
+        glClear(GL_COLOR_BUFFER_BIT);
+
+        glBegin(GL_TRIANGLES);
+        glVertex2f(-1.0f,-1.0f);
+        glVertex2f(0.0f,1.0f);
+        glVertex2f(1.0f,-1.0f);
+        glEnd();
+
+        /* Swap front and back buffers */
+        glfwSwapBuffers(window);
+
+        /* Poll for and process events */
+        glfwPollEvents();
+    }
+
+    glfwTerminate();
+    return 0;
+}
\ No newline at end of file