diff --git a/Makefile b/Makefile
index 4e8011a04..72fcadf17 100644
--- a/Makefile
+++ b/Makefile
@@ -60,7 +60,7 @@ include ion/Makefile
 include kandinsky/Makefile
 include poincare/Makefile
 include escher/Makefile
-include app/Makefile
+include apps/Makefile
 include quiz/Makefile # Quiz should be included at the end
 
 %.elf: $(objs)
diff --git a/app/escher_demo.cpp b/app/escher_demo.cpp
deleted file mode 100644
index 5c1faae50..000000000
--- a/app/escher_demo.cpp
+++ /dev/null
@@ -1,376 +0,0 @@
-extern "C" {
-#include <assert.h>
-#include <stdlib.h>
-#include <ion.h>
-}
-#include <escher.h>
-
-class MyFunCell : public ChildlessView, public Responder {
-public:
-  MyFunCell();
-  void setMessage(const char * message);
-  void setEven(bool even);
-
-  void drawRect(KDRect rect) const override;
-  void setFocused(bool focused) override;
-private:
-  const char * m_message;
-  bool m_focused;
-  bool m_even;
-};
-
-MyFunCell::MyFunCell() :
-  ChildlessView(),
-  m_focused(false),
-  m_even(false)
-{
-  m_message = "NULL";
-}
-
-void MyFunCell::drawRect(KDRect rect) const {
-  KDColor background = m_even ? KDColorRGB(0xEE, 0xEE, 0xEE) : KDColorRGB(0x77,0x77,0x77);
-  KDFillRect(rect, background);
-  KDDrawString(m_message, KDPointZero, m_focused);
-}
-
-void MyFunCell::setMessage(const char * message) {
-  m_message = message;
-}
-
-void MyFunCell::setFocused(bool focused) {
-  m_focused = focused;
-  markRectAsDirty(bounds());
-}
-
-void MyFunCell::setEven(bool even) {
-  m_even = even;
-}
-
-class ListController : public ViewController, public TableViewDataSource {
-public:
-  ListController();
-
-  void setActiveCell(int index);
-
-  View * view() override;
-  const char * title() const override;
-  bool handleEvent(ion_event_t event) override;
-
-  int numberOfCells() override;
-  void willDisplayCellForIndex(View * cell, int index) override;
-  KDCoordinate cellHeight() override;
-  View * reusableCell(int index) override;
-  int reusableCellCount() override;
-private:
-  constexpr static int k_totalNumberOfModels = 20;
-  constexpr static int k_maxNumberOfCells = 10;
-  // !!! CAUTION: The order here is important
-  // The cells should be initialized *before* the tableview!
-  MyFunCell m_cells[k_maxNumberOfCells];
-  TableView m_tableView;
-  const char ** m_messages;
-  int m_activeCell;
-  KDCoordinate m_manualScrolling;
-};
-
-static const char * sMessages[] = {
-  "AAA 0", "BBB 1", "CCC 2", "DDD 3", "EEE 4",
-  "FFF 5", "GGG 6", "HHH 7", "III 8", "JJJ 9",
-  "KKK10", "LLL11", "MMM12", "NNN13", "OOO14",
-  "PPP15", "QQQ16", "RRR17", "SSS18", "TTT19"
-};
-
-ListController::ListController() :
-  ViewController(),
-  m_tableView(TableView(this)),
-  m_activeCell(0),
-  m_manualScrolling(0)
-{
-  m_messages = sMessages;
-}
-
-View * ListController::view() {
-  return &m_tableView;
-}
-
-const char * ListController::title() const {
-  return "List";
-}
-
-void ListController::setActiveCell(int index) {
-  if (index < 0 || index >= k_totalNumberOfModels) {
-    return;
-  }
-
-  m_activeCell = index;
-  m_tableView.scrollToRow(index);
-  MyFunCell * cell = (MyFunCell *)(m_tableView.cellAtIndex(index));
-  cell->setParentResponder(this);
-  App::runningApp()->focus(cell);
-}
-
-bool ListController::handleEvent(ion_event_t event) {
-  switch (event) {
-    case DOWN_ARROW:
-      setActiveCell(m_activeCell+1);
-      return true;
-    case UP_ARROW:
-      setActiveCell(m_activeCell-1);
-      return true;
-    case ENTER:
-      m_manualScrolling += 10;
-      m_tableView.setContentOffset({0, m_manualScrolling});
-      return true;
-    default:
-      return false;
-  }
-}
-
-int ListController::numberOfCells() {
-  return k_totalNumberOfModels;
-};
-
-View * ListController::reusableCell(int index) {
-  assert(index >= 0);
-  assert(index < k_maxNumberOfCells);
-  return &m_cells[index];
-}
-
-int ListController::reusableCellCount() {
-  return k_maxNumberOfCells;
-}
-
-void ListController::willDisplayCellForIndex(View * cell, int index) {
-  MyFunCell * myCell = (MyFunCell *)cell;
-  myCell->setMessage(m_messages[index]);
-  myCell->setEven(index%2 == 0);
-}
-
-KDCoordinate ListController::cellHeight() {
-  return 40;
-}
-
-class CursorView : public ChildlessView {
-public:
-  using ChildlessView::ChildlessView;
-  void drawRect(KDRect rect) const override;
-};
-
-void CursorView::drawRect(KDRect rect) const {
-  KDFillRect(rect, KDColorRed);
-}
-
-class GraphView : public View {
-public:
-  GraphView();
-  void drawRect(KDRect rect) const override;
-  void moveCursorRight();
-private:
-  int numberOfSubviews() const override;
-  View * subviewAtIndex(int index) override;
-  void layoutSubviews() override;
-
-  CursorView m_cursorView;
-  KDPoint m_cursorPosition;
-};
-
-GraphView::GraphView() :
-  View(),
-  m_cursorView(CursorView()),
-  m_cursorPosition(KDPointZero)
-{
-}
-
-int GraphView::numberOfSubviews() const {
-  return 1;
-};
-
-View * GraphView::subviewAtIndex(int index) {
-  return &m_cursorView;
-}
-
-void GraphView::moveCursorRight() {
-  m_cursorPosition.x = m_cursorPosition.x + 2;
-  layoutSubviews();
-}
-
-void GraphView::layoutSubviews() {
-  KDRect cursorFrame;
-  cursorFrame.origin = m_cursorPosition;
-  cursorFrame.width = 10;
-  cursorFrame.height = 10;
-  m_cursorView.setFrame(cursorFrame);
-}
-
-void GraphView::drawRect(KDRect rect) const {
-  KDFillRect(rect, KDColorWhite);
-  KDCoordinate x_grid_step = m_frame.width/10;
-  KDCoordinate y_grid_step = m_frame.height/10;
-  KDColor gridColor = KDColorGray(0xEE);
-  for (KDCoordinate x=m_frame.x; x<m_frame.width; x += x_grid_step) {
-    KDRect verticalGridRect;
-    verticalGridRect.x = x;
-    verticalGridRect.y = m_frame.y;
-    verticalGridRect.width = 1;
-    verticalGridRect.height = m_frame.height;
-    KDFillRect(verticalGridRect, gridColor);
-  }
-  for (KDCoordinate y=m_frame.y; y<m_frame.height; y += y_grid_step) {
-    KDRect horizontalGridRect;
-    horizontalGridRect.x = m_frame.x;
-    horizontalGridRect.y = y;
-    horizontalGridRect.width = m_frame.width;
-    horizontalGridRect.height = 1;
-    KDFillRect(horizontalGridRect, gridColor);
-  }
-
-  for (int i=m_frame.x; i<m_frame.width; i++) {
-    KDPoint p;
-    p.x = i;
-    p.y = (i*i)/m_frame.height;
-    KDSetPixel(p, KDColorRGB(0x7F, 0, 0));
-  }
-
-};
-
-class GraphController : public ViewController {
-public:
-  GraphController(KDColor c);
-  View * view() override;
-  const char * title() const override;
-  void setFocused(bool focused) override;
-  bool handleEvent(ion_event_t event) override;
-private:
-#if 0
-  //SolidColorView m_view;
-  static constexpr int k_bufferSize = 100;
-  char buffer[k_bufferSize];
-  TextField m_view;
-#else
-  GraphView m_view;
-#endif
-};
-
-GraphController::GraphController(KDColor c) :
-  ViewController(),
-  //m_view(TextField(buffer, k_bufferSize))
-  //m_view(SolidColorView(c))
-  m_view(GraphView())
-{
-  //m_view.setParentResponder(this);
-}
-
-View * GraphController::view() {
-  return &m_view;
-}
-
-const char * GraphController::title() const {
-  return "Graph";
-}
-
-void GraphController::setFocused(bool focused) {
-  /*
-  if (focused) {
-    App::runningApp()->focus(&m_view);
-  }
-  */
-}
-
-bool GraphController::handleEvent(ion_event_t event) {
-  switch (event) {
-    case ENTER:
-      m_view.moveCursorRight();
-      return true;
-    default:
-      return false;
-  }
-}
-
-class MyTestApp : public App {
-public:
-  MyTestApp();
-protected:
-  ViewController * rootViewController() override;
-private:
-  GraphController m_graphViewController;
-  ListController m_listViewController;
-  TabViewController m_tabViewController;
-};
-
-MyTestApp::MyTestApp() :
-  App(),
-  m_graphViewController(GraphController(KDColorWhite)),
-  m_listViewController(ListController()),
-  m_tabViewController(&m_graphViewController, &m_listViewController)
-{
-}
-
-ViewController * MyTestApp::rootViewController() {
-  return &m_tabViewController;
-}
-
-void ion_app() {
-
-  //KDDrawString("Hello", {0,0}, 0);
-
-  //KDFillRect({0,0,100,100}, 0x55);
-  //KDFillRect({100,100,100,100}, 0x99);
-
-  /*
-  KDCoordinate i = 0;
-  char message[4] = {'F', 'O', 'O', 0};
-  while (1) {
-    KDPoint p = {i, i};
-    KDDrawString(message, p, false);
-    ion_event_t event = ion_get_event();
-    if (event < 0x100) {
-      message[1] = event;
-    }
-    i+= 1;
-  }
-  */
-
-  MyTestApp myApp = MyTestApp();
-
-  myApp.run();
-
-  /*
-  int i = 0;
-
-  while(true) {
-#if ESCHER_VIEW_LOGGING
-    std::cout << window << std::endl;
-#endif
-    tabVC.setActiveTab(i);
-    ion_event_t event = ion_get_event();
-    tabVC.handleKeyEvent(event);
-    i = (i+1)%2;
-  }
-  */
-
-
-
-  /*
-  static GraphApp app = GraphApp();
-  app.run();
-  */
-  /*
-  KDRect wholeScreen = {0, 0, 100, 100};
-  KDColor a = 0x55;
-  View * window = new SolidColorView(wholeScreen, a);
-  KDRect textRect = {0, 0, 50, 50};
-  MyTextView * textView = new MyTextView(textRect);
-  window->addSubview(textView);
-
-  //window->draw();
-
-  while (1) {
-    ion_sleep();
-    textRect.y = textRect.y+1;
-    textView->setFrame(textRect);
-  }
-
-  delete textView;
-  delete window;
-  */
-}
diff --git a/apps/Makefile b/apps/Makefile
new file mode 100644
index 000000000..c781b4af3
--- /dev/null
+++ b/apps/Makefile
@@ -0,0 +1,9 @@
+include apps/graph/Makefile
+
+app_objs += $(addprefix apps/,\
+  main.o\
+)
+
+products += $(app_objs) app.elf app.hex app.bin
+
+app.elf: $(app_objs)
diff --git a/apps/graph/Makefile b/apps/graph/Makefile
new file mode 100644
index 000000000..bf9d160de
--- /dev/null
+++ b/apps/graph/Makefile
@@ -0,0 +1,8 @@
+app_objs += $(addprefix apps/graph/,\
+  graph_app.o\
+  graph/cursor_view.o\
+  graph/graph_controller.o\
+  graph/graph_view.o\
+  list/function_cell.o\
+  list/list_controller.o\
+)
diff --git a/apps/graph/graph/cursor_view.cpp b/apps/graph/graph/cursor_view.cpp
new file mode 100644
index 000000000..f635c3185
--- /dev/null
+++ b/apps/graph/graph/cursor_view.cpp
@@ -0,0 +1,5 @@
+#include "cursor_view.h"
+
+void CursorView::drawRect(KDRect rect) const {
+  KDFillRect(rect, KDColorRed);
+}
diff --git a/apps/graph/graph/cursor_view.h b/apps/graph/graph/cursor_view.h
new file mode 100644
index 000000000..2acd60934
--- /dev/null
+++ b/apps/graph/graph/cursor_view.h
@@ -0,0 +1,12 @@
+#ifndef GRAPH_CURSOR_VIEW_H
+#define GRAPH_CURSOR_VIEW_H
+
+#include <escher.h>
+
+class CursorView : public ChildlessView {
+public:
+  using ChildlessView::ChildlessView;
+  void drawRect(KDRect rect) const override;
+};
+
+#endif
diff --git a/apps/graph/graph/graph_controller.cpp b/apps/graph/graph/graph_controller.cpp
new file mode 100644
index 000000000..0788ee909
--- /dev/null
+++ b/apps/graph/graph/graph_controller.cpp
@@ -0,0 +1,36 @@
+#include "graph_controller.h"
+
+GraphController::GraphController(KDColor c) :
+  ViewController(),
+  //m_view(TextField(buffer, k_bufferSize))
+  //m_view(SolidColorView(c))
+  m_view(GraphView())
+{
+  //m_view.setParentResponder(this);
+}
+
+View * GraphController::view() {
+  return &m_view;
+}
+
+const char * GraphController::title() const {
+  return "Graph";
+}
+
+void GraphController::setFocused(bool focused) {
+  /*
+  if (focused) {
+    App::runningApp()->focus(&m_view);
+  }
+  */
+}
+
+bool GraphController::handleEvent(ion_event_t event) {
+  switch (event) {
+    case ENTER:
+      m_view.moveCursorRight();
+      return true;
+    default:
+      return false;
+  }
+}
diff --git a/apps/graph/graph/graph_controller.h b/apps/graph/graph/graph_controller.h
new file mode 100644
index 000000000..3456b23e2
--- /dev/null
+++ b/apps/graph/graph/graph_controller.h
@@ -0,0 +1,18 @@
+#ifndef GRAPH_GRAPH_CONTROLLER_H
+#define GRAPH_GRAPH_CONTROLLER_H
+
+#include <escher.h>
+#include "graph_view.h"
+
+class GraphController : public ViewController {
+public:
+  GraphController(KDColor c);
+  View * view() override;
+  const char * title() const override;
+  void setFocused(bool focused) override;
+  bool handleEvent(ion_event_t event) override;
+private:
+  GraphView m_view;
+};
+
+#endif
diff --git a/apps/graph/graph/graph_view.cpp b/apps/graph/graph/graph_view.cpp
new file mode 100644
index 000000000..818013218
--- /dev/null
+++ b/apps/graph/graph/graph_view.cpp
@@ -0,0 +1,58 @@
+#include "graph_view.h"
+
+GraphView::GraphView() :
+  View(),
+  m_cursorView(CursorView()),
+  m_cursorPosition(KDPointZero)
+{
+}
+
+int GraphView::numberOfSubviews() const {
+  return 1;
+};
+
+View * GraphView::subviewAtIndex(int index) {
+  return &m_cursorView;
+}
+
+void GraphView::moveCursorRight() {
+  m_cursorPosition.x = m_cursorPosition.x + 2;
+  layoutSubviews();
+}
+
+void GraphView::layoutSubviews() {
+  KDRect cursorFrame;
+  cursorFrame.origin = m_cursorPosition;
+  cursorFrame.width = 10;
+  cursorFrame.height = 10;
+  m_cursorView.setFrame(cursorFrame);
+}
+
+void GraphView::drawRect(KDRect rect) const {
+  KDFillRect(rect, KDColorWhite);
+  KDCoordinate x_grid_step = m_frame.width/10;
+  KDCoordinate y_grid_step = m_frame.height/10;
+  KDColor gridColor = KDColorGray(0xEE);
+  for (KDCoordinate x=0; x<m_frame.width; x += x_grid_step) {
+    KDRect verticalGridRect;
+    verticalGridRect.x = x;
+    verticalGridRect.y = 0;
+    verticalGridRect.width = 1;
+    verticalGridRect.height = m_frame.height;
+    KDFillRect(verticalGridRect, gridColor);
+  }
+  for (KDCoordinate y=0; y<m_frame.height; y += y_grid_step) {
+    KDRect horizontalGridRect;
+    horizontalGridRect.x = 0;
+    horizontalGridRect.y = y;
+    horizontalGridRect.width = m_frame.width;
+    horizontalGridRect.height = 1;
+    KDFillRect(horizontalGridRect, gridColor);
+  }
+  for (int i=0; i<m_frame.width; i++) {
+    KDPoint p;
+    p.x = i;
+    p.y = (i*i)/m_frame.height;
+    KDSetPixel(p, KDColorRGB(0x7F, 0, 0));
+  }
+};
diff --git a/apps/graph/graph/graph_view.h b/apps/graph/graph/graph_view.h
new file mode 100644
index 000000000..f192d5340
--- /dev/null
+++ b/apps/graph/graph/graph_view.h
@@ -0,0 +1,21 @@
+#ifndef GRAPH_GRAPH_VIEW_H
+#define GRAPH_GRAPH_VIEW_H
+
+#include <escher.h>
+#include "cursor_view.h"
+
+class GraphView : public View {
+public:
+  GraphView();
+  void drawRect(KDRect rect) const override;
+  void moveCursorRight();
+private:
+  int numberOfSubviews() const override;
+  View * subviewAtIndex(int index) override;
+  void layoutSubviews() override;
+
+  CursorView m_cursorView;
+  KDPoint m_cursorPosition;
+};
+
+#endif
diff --git a/apps/graph/graph_app.cpp b/apps/graph/graph_app.cpp
new file mode 100644
index 000000000..607a2030b
--- /dev/null
+++ b/apps/graph/graph_app.cpp
@@ -0,0 +1,13 @@
+#include "graph_app.h"
+
+GraphApp::GraphApp() :
+  App(),
+  m_graphViewController(GraphController(KDColorWhite)),
+  m_listViewController(ListController()),
+  m_tabViewController(&m_graphViewController, &m_listViewController)
+{
+}
+
+ViewController * GraphApp::rootViewController() {
+  return &m_tabViewController;
+}
diff --git a/apps/graph/graph_app.h b/apps/graph/graph_app.h
new file mode 100644
index 000000000..b7c2e5e9b
--- /dev/null
+++ b/apps/graph/graph_app.h
@@ -0,0 +1,19 @@
+#ifndef GRAPH_GRAPH_APP_H
+#define GRAPH_GRAPH_APP_H
+
+#include <escher.h>
+#include "graph/graph_controller.h"
+#include "list/list_controller.h"
+
+class GraphApp : public App {
+public:
+  GraphApp();
+protected:
+  ViewController * rootViewController() override;
+private:
+  GraphController m_graphViewController;
+  ListController m_listViewController;
+  TabViewController m_tabViewController;
+};
+
+#endif
diff --git a/apps/graph/list/function_cell.cpp b/apps/graph/list/function_cell.cpp
new file mode 100644
index 000000000..a602ba137
--- /dev/null
+++ b/apps/graph/list/function_cell.cpp
@@ -0,0 +1,28 @@
+#include "function_cell.h"
+
+FunctionCell::FunctionCell() :
+  ChildlessView(),
+  m_focused(false),
+  m_even(false)
+{
+  m_message = "NULL";
+}
+
+void FunctionCell::drawRect(KDRect rect) const {
+  KDColor background = m_even ? KDColorRGB(0xEE, 0xEE, 0xEE) : KDColorRGB(0x77,0x77,0x77);
+  KDFillRect(rect, background);
+  KDDrawString(m_message, KDPointZero, m_focused);
+}
+
+void FunctionCell::setMessage(const char * message) {
+  m_message = message;
+}
+
+void FunctionCell::setFocused(bool focused) {
+  m_focused = focused;
+  markRectAsDirty(bounds());
+}
+
+void FunctionCell::setEven(bool even) {
+  m_even = even;
+}
diff --git a/apps/graph/list/function_cell.h b/apps/graph/list/function_cell.h
new file mode 100644
index 000000000..51251ad5d
--- /dev/null
+++ b/apps/graph/list/function_cell.h
@@ -0,0 +1,20 @@
+#ifndef GRAPH_FUNCTION_CELL_H
+#define GRAPH_FUNCTION_CELL_H
+
+#include <escher.h>
+
+class FunctionCell : public ChildlessView, public Responder {
+public:
+  FunctionCell();
+  void setMessage(const char * message);
+  void setEven(bool even);
+
+  void drawRect(KDRect rect) const override;
+  void setFocused(bool focused) override;
+private:
+  const char * m_message;
+  bool m_focused;
+  bool m_even;
+};
+
+#endif
diff --git a/apps/graph/list/list_controller.cpp b/apps/graph/list/list_controller.cpp
new file mode 100644
index 000000000..c037bb72e
--- /dev/null
+++ b/apps/graph/list/list_controller.cpp
@@ -0,0 +1,79 @@
+#include "list_controller.h"
+#include <assert.h>
+
+static const char * sMessages[] = {
+  "AAA 0", "BBB 1", "CCC 2", "DDD 3", "EEE 4",
+  "FFF 5", "GGG 6", "HHH 7", "III 8", "JJJ 9",
+  "KKK10", "LLL11", "MMM12", "NNN13", "OOO14",
+  "PPP15", "QQQ16", "RRR17", "SSS18", "TTT19"
+};
+
+ListController::ListController() :
+  ViewController(),
+  m_tableView(TableView(this)),
+  m_activeCell(0),
+  m_manualScrolling(0)
+{
+  m_messages = sMessages;
+}
+
+View * ListController::view() {
+  return &m_tableView;
+}
+
+const char * ListController::title() const {
+  return "List";
+}
+
+void ListController::setActiveCell(int index) {
+  if (index < 0 || index >= k_totalNumberOfModels) {
+    return;
+  }
+
+  m_activeCell = index;
+  m_tableView.scrollToRow(index);
+  FunctionCell * cell = (FunctionCell *)(m_tableView.cellAtIndex(index));
+  cell->setParentResponder(this);
+  App::runningApp()->focus(cell);
+}
+
+bool ListController::handleEvent(ion_event_t event) {
+  switch (event) {
+    case DOWN_ARROW:
+      setActiveCell(m_activeCell+1);
+      return true;
+    case UP_ARROW:
+      setActiveCell(m_activeCell-1);
+      return true;
+    case ENTER:
+      m_manualScrolling += 10;
+      m_tableView.setContentOffset({0, m_manualScrolling});
+      return true;
+    default:
+      return false;
+  }
+}
+
+int ListController::numberOfCells() {
+  return k_totalNumberOfModels;
+};
+
+View * ListController::reusableCell(int index) {
+  assert(index >= 0);
+  assert(index < k_maxNumberOfCells);
+  return &m_cells[index];
+}
+
+int ListController::reusableCellCount() {
+  return k_maxNumberOfCells;
+}
+
+void ListController::willDisplayCellForIndex(View * cell, int index) {
+  FunctionCell * myCell = (FunctionCell *)cell;
+  myCell->setMessage(m_messages[index]);
+  myCell->setEven(index%2 == 0);
+}
+
+KDCoordinate ListController::cellHeight() {
+  return 40;
+}
diff --git a/apps/graph/list/list_controller.h b/apps/graph/list/list_controller.h
new file mode 100644
index 000000000..770013a4d
--- /dev/null
+++ b/apps/graph/list/list_controller.h
@@ -0,0 +1,34 @@
+#ifndef GRAPH_LIST_CONTROLLER_H
+#define GRAPH_LIST_CONTROLLER_H
+
+#include <escher.h>
+#include "function_cell.h"
+
+class ListController : public ViewController, public TableViewDataSource {
+public:
+  ListController();
+
+  void setActiveCell(int index);
+
+  View * view() override;
+  const char * title() const override;
+  bool handleEvent(ion_event_t event) override;
+
+  int numberOfCells() override;
+  void willDisplayCellForIndex(View * cell, int index) override;
+  KDCoordinate cellHeight() override;
+  View * reusableCell(int index) override;
+  int reusableCellCount() override;
+private:
+  constexpr static int k_totalNumberOfModels = 20;
+  constexpr static int k_maxNumberOfCells = 10;
+  // !!! CAUTION: The order here is important
+  // The cells should be initialized *before* the tableview!
+  FunctionCell m_cells[k_maxNumberOfCells];
+  TableView m_tableView;
+  const char ** m_messages;
+  int m_activeCell;
+  KDCoordinate m_manualScrolling;
+};
+
+#endif
diff --git a/apps/main.cpp b/apps/main.cpp
new file mode 100644
index 000000000..07b779451
--- /dev/null
+++ b/apps/main.cpp
@@ -0,0 +1,6 @@
+#include "graph/graph_app.h"
+
+void ion_app() {
+  GraphApp graphApp = GraphApp();
+  graphApp.run();
+}