-ALL CREDIT GOES TO GREGGERSAURUS!-
The original repo can be found here: https://github.com/greggersaurus/OpenSteamController/tree/master/Jingle
This particular repo is designed to make loading jingles on your Steam controller fast and simple without having to download and use Qt 5.12.12 (MinGW 64-bit) / QT Creator 4.9.0 to build and run the GUI for SCJingleConverter on Windows. For a step by step guide, refer to the original repo above and follow the steps excluding "Building SCJingleConverter".
As of now I have not been able to test on Windows 11, although I have successfully ran and loaded jingles using both of my Windows 10 machines.
The code was compiled and deployed on Windows 10 using Qt 5.12.12 (MinGW 7.3.0 64-bit).
No changes were made to the SCJingleConverter code / GUI.
*Update
I have had a chance to launch the exe on Windows 11. While there are some visual bugs, everything is still fairly readable and you can still easily understand what does what. I have not been able to test further.