If I recall correctly, I tried it even with no version installed. But I am able to test the app on Volla 22 too so I don’t need to worry about the SDK.
With the latest commit, I think the first people find it even usefull to listen to specific songs.
So I suppose, a tidal app really is possible but for now I don’t know if the listend songs will be tracked in the statistic of tidal. At least not by resolving the track url.