Hello. I am Alan, N7AKG.
I have tried the WRL CAT integration program and it works well for listening to N1MM and WSJT-X, BUT I use a number of other Digi programs as well that I would like it to support. So instead of waiting for WRL development, I have written a ‘little ditty’ that will listen for UDP broadcast from many different Digi programs, like JS8, VarAc, & Flidigi, and translate and rebroadcast them as a N1MM UDP packet. This way ALL my digi applications can feed into WRL with one interface. I have tested it and seems to be working well and I offer it to anyone else in this community who wants to have a look and see if it helps.
The GitHub repository is here. I have built a Windows version in releases, but if you want a Linux version let me know and I can easily build that and release it. Or you can check out the repository, have a look yourself and compile it.
73,Alan N7AKG