I have used Tk (through Python's tkinter) for several touch-based "kiosk" applications. It is surprisingly useful and productive for that. What you need is smal

I have used Tk (through Python's tkinter) for several touch-based "kiosk" applications. It is surprisingly useful and productive for that. What you need is small (~100 lines) custom ttk style which adds larger padings to buttons and such and maybe makes it look "modern", flat and colorful and that's it. It certainly makes more sense than making such things web-based.