diff --git a/blackbox/blackbox.py b/blackbox/blackbox.py
index 160ac09..3de1272 100644
--- a/blackbox/blackbox.py
+++ b/blackbox/blackbox.py
@@ -23,9 +23,10 @@ from ui.PackagesImportDialog import PackagesImportDialog
 
 import gi
 gi.require_version("Gtk", "3.0")
-from gi.repository import Gtk,Gdk,GdkPixbuf, Pango
+from gi.repository import Gtk,Gdk,GdkPixbuf, Pango, GLib
 
 import Functions as fn
+from Settings import Settings
 
 base_dir = os.path.dirname(os.path.realpath(__file__))
 
@@ -137,5 +138,74 @@ class Main(Gtk.Window): # Basic OOPS Concept
                 )
                 fn.get_current_installed()
                 installed_lst_file = "%s/cache/installed.lst" % base_dir
-                
+                packages_app_start_file = "%s/%s-packages.txt" % (
+                    fn.log_dir,
+                    fn.datetime.now().strftime("%Y-%m-%d-%H-%M-%S")
+                )
+                if os.path.exists(installed_lst_file):
+                    fn.logger.info(
+                        "Created installed.lst"
+                    )
+                thread_pacman_sync_db = fn.threading.Thread(
+                    name="thread_pacman_sync_db",
+                    target=self.pacman_db_sync,
+                    daemon=True,
+                )
+                thread_pacman_sync_db.start()
+        except Exception as e:
+            fn.logger.error(
+                "Found Exception in Main(): %s" % e
+            )
+    
+    def pacman_db_sync(self):
+        sync_err = fn.sync_package_db()
+        if sync_err is not None:
+            fn.logger.error(
+                "Pacman Database Synchronization Faild!"
+            )
+            print("--")
+            GLib.idle_add(
+                self.show_sync_db_message_dialog,
+                sync_err,
+                priority=GLib.PRIORITY_DEFAULT,
+            )
+        else:
+            fn.logger.info(
+                "Pacman Dtabase Synchronization Completed."
+            )
+            return True
+    
+    def show_sync_db_message_dialog(self, sync_err):
+        message_dialog = MessageDialog(
+            "Error",
+            "Pacman db Synchronization faled!",
+            "Failed to run command: sudo pacman -Sy\nPacman db synchronization failed.\nCheck pcman sync log",
+            sync_err,
+            "error",
+            True,
+        )
+        message_dialog.show_all()
+        message_dialog.run()
+        message_dialog.hide()
+    
+    def on_keypress_event(self, widget, event):
+        shortcut = Gtk.accelerator_get_label(event.keyval, event.state)
+        if shortcut in ("Ctrl+F", "Ctrl+Mod2+F"):
+            self.searchentry.grab_focus()
+        if shortcut in ("Ctrl+I", "Ctrl+Mod2+I"):
+            fn.show_package_info(self)
+
+    def on_search_activated(self, searchentry):
+        if searchentry.get_text_length() == 0 and self.search_activated:
+            GUI.setup_gui(
+                self,
+                Gtk,
+                Gdk,
+                GdkPixbuf,
+                base_dir,
+                os,
+                Pango,
+                None,
+            )
+            self.search_activated = False