This was asked many times, but I’ve to ask again.
Because protocol/communication has changed (now all controls through IP are encrypted) the former HA for the RS520 integration doesn’t works anymore.
Because also wireshark helps here anymore and workarounds through DLNA or Apple TV (only for control rudiment media controls) also not working.
At the moment the only option is to use the roon integration (or for me the http api from roon), which handles for shure only the roon part.
So again: Please add a HA integration for the rose devices or/and publish your used protocol.
Nearly other brands producing streamers are open for this without Hifi Rose.