Mapping keys on Tartarus gamepad.

I have been using an iteration of the tartarus keypad for 20 years, starting with the Nostromo.  My current version is the Tartarus, which I  got for my last computer running Windows 10.  I just built a desktop with Windows 11.  I need to find an application that I can download to my computer by which I can change the key mapping on the device.  I don’t need a cloud based app, as I am using it exclusively on a single desktop.  I don’t want to have to log into a website every time I want to change the configuration.  Is there any way to do this.  It used to be that I could just start up the configuration application and set stuff up in a few minutes.  Now, it seems like I have to lo into this crappy ass website to do something which is local to my machine.