A small prototype is created!

app.py

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+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_()

core_lib/unclassified.py

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+from PySide6.QtGui import QScreen
+from PySide6.QtWidgets import QMainWindow, QApplication
+
+
+def move_window_to_center(window: QMainWindow):
+    main_screen = QApplication.primaryScreen()
+    center = QScreen.availableGeometry(main_screen).center()
+    geometry = window.frameGeometry()
+    geometry.moveCenter(center)
+    window.move(geometry.topLeft())

main.py

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+import os
+import sys
+import argparse
+import logging
+from app import Launcher
+import tkinter as tk
+
+# Logger configure
+logging.basicConfig(format='%(asctime)s:%(name)s:%(levelname)s: %(message)s',
+                    level=logging.INFO,
+                    datefmt='%H:%M:%S')
+
+def select_mode() -> None | str:
+    value = None
+
+    def get_value(root: tk.Tk, listbox_obj: tk.Listbox):
+        nonlocal value
+        value = listbox.get(listbox_obj.curselection()[0]) if listbox_obj.curselection() else None
+        root.destroy()
+
+    support_list = ["full", "lightweight"]
+
+    r = tk.Tk()
+    r.title("TestLauncher")
+    r.geometry("300x300")
+
+    label = tk.Label(r, text="Select a mode to continue")
+    label.pack(anchor="n")
+
+    listbox = tk.Listbox(r, selectmode=tk.SINGLE)
+    listbox.pack(expand=True, fill="both")
+    listbox.bind("<Double-Button-1>", lambda e: get_value(r, listbox))
+
+    for support in support_list:
+        listbox.insert(tk.END, support)
+
+    listbox.selection_set(0)
+
+    # move to center
+    r.eval('tk::PlaceWindow . center')
+
+    r.mainloop()
+
+    return value
+
+
+def tui_entry():
+    logger = logging.getLogger("TestLauncher.Tui")
+    logger.info("Wow tui is unfinished")
+
+def main():
+    logger = logging.getLogger("Launcher.Main")
+
+    parser = argparse.ArgumentParser()
+    parser.add_argument("-m", "--mode", choices=['lightweight', 'full', 'choice'], default='choice',
+                        help="Select mode (lightweight for tui, full is gui,"
+                             "choice for a mode select window)", required=False)
+
+    args, unknown = parser.parse_known_args()
+    for arg in unknown:
+        logging.warning("Unknown argument '%s'" % arg)
+
+    if not hasattr(args, "mode") or args.mode == "choice":
+        mode = select_mode()
+
+        if mode is None:
+            logging.warning("No mode selected. Exiting...")
+            sys.exit(0)
+    else:
+        mode = args.mode
+
+    if mode == 'lightweight':
+        sys.exit(tui_entry())
+    elif mode == 'full':
+        app = Launcher()
+        sys.exit(app.exec())
+    else:
+        logger.error("Unknown mode '%s'" % mode)
+        sys.exit(1)
+
+
+if __name__ == '__main__':
+    main()