Gemini did alot of things

main.py

@@ -1,7 +1,7 @@
+import sys
 from core.tracker import Tracker
 from storage.data_manager import DataManager
 from config import REGISTERED_USERS, MENU_ITEMS
-from ui.cli import CLI
 
 
 def init_data(tracker, data_manager):
@@ -27,8 +27,22 @@ def main():
 
     init_data(tracker, dm)
 
-    cli = CLI(tracker)
-    cli.run()
+    if "--cli" in sys.argv:
+        from ui.cli import CLI
+        cli = CLI(tracker)
+        cli.run()
+    else:
+        try:
+            from ui.kivy import KivyUI
+            gui = KivyUI(tracker)
+            gui.run()
+        except Exception as e:
+            import traceback
+            traceback.print_exc()
+            print(f"Kivy GUI konnte nicht geladen werden ({e}). Starte CLI-Modus...")
+            from ui.cli import CLI
+            cli = CLI(tracker)
+            cli.run()
 
 
 if __name__ == "__main__":