/Users/username/Library/Application Support/Dolphin/Config/Profiles/Wiimote/ds4macos.ini.Stable versions are released once every year or two, while. Much of the wisdom learned here can be applied to installation and configuration on other operating systems as well, and we even have an Ubuntu Linux installation guide here.
More recent versions only support 64-bit Windows, Mac OS X, Linux and Android operating systems, though.
If you aren't interested in using the accelerometer and gyro of DS4 controler(s) then this application is not needed, This application is designed to also have motion data available from DS4 controllers in the Dolphin emulator on MacOS.