diff --git a/lv_sim_linux/CMakeLists.txt b/lv_sim_linux/CMakeLists.txt
index 658193f..d15c4d7 100644
--- a/lv_sim_linux/CMakeLists.txt
+++ b/lv_sim_linux/CMakeLists.txt
@@ -19,6 +19,10 @@ find_package(SDL2)
 find_package(SDL2_image)
 include_directories(${SDL2_INCLUDE_DIRS} ${SDL2_IMAGE_INCLUDE_DIRS})
 
-target_link_libraries(main lvgl lvgl::examples lvgl::demos lvgl::thorvg ${SDL2_LIBRARIES} ${SDL2_IMAGE_LIBRARIES} ${Libdrm_LIBRARIES} m pthread)
+add_subdirectory(GUI) # GUI related code
+
+target_link_libraries(main lvgl lvgl::examples lvgl::demos lvgl::thorvg ${SDL2_LIBRARIES} ${SDL2_IMAGE_LIBRARIES} ${Libdrm_LIBRARIES} m pthread
+                        guilib)
+                        
 add_custom_target (run COMMAND ${EXECUTABLE_OUTPUT_PATH}/main DEPENDS main)
 
diff --git a/lv_sim_linux/GUI/CMakeLists.txt b/lv_sim_linux/GUI/CMakeLists.txt
new file mode 100644
index 0000000..d14e10f
--- /dev/null
+++ b/lv_sim_linux/GUI/CMakeLists.txt
@@ -0,0 +1,11 @@
+# gui/CMakeLists.txt
+file(GLOB GUI_SOURCES
+    "*.cpp"
+    "*.c"
+    "*.cxx"
+    "*.cc"
+)
+
+add_library(guilib STATIC ${GUI_SOURCES})
+
+target_include_directories(guilib PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/../lvgl)