diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8295e47..bad4015 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,7 +12,7 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 find_package(QT NAMES Qt6 Qt5 REQUIRED COMPONENTS Widgets)
 find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS Widgets)
 
-file(GLOB_RECURSE PROJECT_SOURCES "src/*.cpp" "src/*.cxx" "src/*.h" "src/*.hpp")
+file(GLOB_RECURSE PROJECT_SOURCES "src/**.cpp" "src/**.cxx" "src/**.h" "src/**.hpp")
 list(APPEND PROJECT_SOURCES "main.cpp")
 
 if(${QT_VERSION_MAJOR} GREATER_EQUAL 6)
@@ -38,7 +38,26 @@ else()
     endif()
 endif()
 
-target_link_libraries(CuteSchedule PRIVATE Qt${QT_VERSION_MAJOR}::Widgets)
+# --- External projects include --- #
+# Add yaml-cpp
+include(ExternalProject)
+set(EXTERNAL_INSTALL_LOCATION ${CMAKE_BINARY_DIR}/external)
+ExternalProject_Add(yaml-cpp
+    GIT_REPOSITORY "https://github.com/jbeder/yaml-cpp"
+    CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${EXTERNAL_INSTALL_LOCATION}
+)
+
+include_directories(${EXTERNAL_INSTALL_LOCATION}/include)
+link_directories(${EXTERNAL_INSTALL_LOCATION}/lib)
+
+add_dependencies(CuteSchedule yaml-cpp)
+
+# --- End external projects --- #
+
+target_link_libraries(CuteSchedule
+    PRIVATE
+    Qt${QT_VERSION_MAJOR}::Widgets
+)
 
 set_target_properties(CuteSchedule PROPERTIES
     MACOSX_BUNDLE_GUI_IDENTIFIER my.example.com
diff --git a/default/config.yml b/default/config.yml
new file mode 100644
index 0000000..f303859
--- /dev/null
+++ b/default/config.yml
@@ -0,0 +1,5 @@
+version: '2'
+
+config:
+    title: 'CuteSchedule'
+    fullscreen_mode: true
diff --git a/src/config/config.cpp b/src/config/config.cpp
new file mode 100644
index 0000000..d748459
--- /dev/null
+++ b/src/config/config.cpp
@@ -0,0 +1,6 @@
+#include "config.h"
+
+Config::Config()
+{
+
+}
diff --git a/src/config/config.h b/src/config/config.h
new file mode 100644
index 0000000..def04db
--- /dev/null
+++ b/src/config/config.h
@@ -0,0 +1,12 @@
+#ifndef CONFIG_H
+#define CONFIG_H
+
+#include <QObject>
+
+class Config
+{
+public:
+    Config();
+};
+
+#endif // CONFIG_H
diff --git a/src/mainwindow.ui b/src/mainwindow.ui
index 4fe0cb4..724e5e2 100644
--- a/src/mainwindow.ui
+++ b/src/mainwindow.ui
@@ -18,18 +18,13 @@
 	background: white
 }</string>
   </property>
-  <widget class="QWidget" name="centralwidget"/>
-  <widget class="QMenuBar" name="menubar">
-   <property name="geometry">
-    <rect>
-     <x>0</x>
-     <y>0</y>
-     <width>800</width>
-     <height>22</height>
-    </rect>
-   </property>
+  <widget class="QWidget" name="centralwidget">
+   <layout class="QVBoxLayout" name="verticalLayout">
+    <item>
+     <widget class="QWidget" name="widget" native="true"/>
+    </item>
+   </layout>
   </widget>
-  <widget class="QStatusBar" name="statusbar"/>
  </widget>
  <resources/>
  <connections/>