@wklie Peter the Nucleus is listed in Unifi devices Icons on fingerprints maybe you can get the Lumin’s added too. Others that show up ate the usual Mac’s and iPhones too plus RPi etc.
Be nice to have a Lumin selectable too or better yet auto detected.
Note sure who to ask but as Roon’s Nucleus is in there maybe someone you can contact at Roon might know it theirs was added.
I assume that is identified by the OUI (MAC address prefix). We just use the default for our CPU, so it is potentially shared with other manufacturers.