rtl_tcp is an interesting idea - I've never tried it but it sure would be interesting to see if it works.I caught notes about this update while skimming the repo the other day. I'm excited to take this for a spin. I'll be testing on the Delaware State 800 system. That system currently runs a SmartZone control channel with P25 CAI audio. I've been waiting for them to finish their upgrade to a true P25 system so I could move forward with another project, but now this feature update beats them to it. I'm happy to provide feedback when I get the new version running and configured here.
Regarding the question on running OP25 via WSL, would using rtl_tcp get around the need for WSL to support USB? (I'm not sure what WSL's support for audio might be, as I haven't had a chance to try it out myself yet.) I don't have a need to run within WSL here, but I nearly exclusively use rtl_tcp as my source with my current OP25 install, so that thought came to mind.