Integrating SGC sonicTransporter with Logitech Harmony Hub

I’m aware of the “Deep Harmony” extension to Roon, which supports remote control through the Logitech Harmony Hub. I have not been able to get it working with my SGC sonicTransporter i9 (running Roon Core). Is this even possible?

After downloading the DH software, I run it, then the extension seems to become visible in Roon (Settings/Extensions). But then no other settings appear. Does the software need to be unpacked on the sonicTransporter, somehow? Or, does sT need to see a path to the software running on another machine?

If it’s not even possible (yet) that would be good to know, too.