A small prototype is created!

app.py

@@ -0,0 +1,17 @@
+from PySide6.QtWidgets import QApplication, QWidget, QMainWindow
+
+from core_lib.unclassified import move_window_to_center
+
+
+class Launcher(QApplication):
+    def __init__(self):
+        super().__init__()
+        self.setApplicationName("TestLauncher")
+        self.main_window = QMainWindow()
+        self.main_window.setGeometry(0, 0, 800, 600)
+
+        move_window_to_center(self.main_window)
+
+    def exec(self):
+        self.main_window.show()
+        self.exec_()