Would you like to connect #WSJT-X to your logger application and another helper app (#GridTracker, JTAlert,...)?
You just need to use a UDP Multicast address (in 224.0.0.1 - 239.255.255.255 range) bound to an network interface (en0 in my case using #linux) in all the apps.
Don't forget to use the same port everywhere!
Thanks to this I can do digital modes (#FT8, #FT4, ...) and, *optionally*, use GridTracker to visualize my contacts.
More details here: https://www.n3fjp.com/help/wsjt-x-integration-with-n3fjp-software.html