Is it possible to have a Subsonic server that falls back to the YT Music API when a song isn't downloaded?

The major thing keeping me from self-hosting my music is that I mostly discover music by using the radio function in ViMusic (Uses the YT Music API to stream music) or by finding a song through friends, social media, etc. and then listening to it in ViMusic to see whether it’s good and I want to add it to my playlist....