@PatMaddox, Roon does not say, or imply, that it will work with Tidal forever. They only say that it works with Tidal NOW. So, Tidal would in no way be violating any agreement. It’s like buying an internal combustion vehicle. You are buying it on the hopes that gasoline will be available as long as you have the vehicle. But, if gasoline suddenly became unavailable, there would not be any breach of any kind by the automaker. Unless a product or service EXPRESSLY states it is forever, it isn’t.
Now, if Roon itself eliminates capabilities that were promised as part of the license, that is a totally different scenario, totally unlike the Tidal scenario. Then Roon would be failing to hold up to their end of the license, and recourse would be totally reasonable.