CTkDesigner is a no-code, drag and drop customtkinter gui design application. (WYSIWYG: what you see is what you get). You just have to click on the widget to spawn it on the working window, then move ...
The driver is written in python and does not necessarily run as a systemd service (How to start NumberPad without systemd service?). It contains the common NumberPad layouts, you can pick up the right ...