In short, yes, it's just tricky to make a client without pulling in entire library and I think there's services like Fountain and V4VMusic which are doing quite well.

So far our main focus was to make the best experience to publish music to Nostr Music and RSS simulteneuously.

By default it publishes to Nostr Music so you can publish all music from RSS feeds without duplication. We wonder if RSS import feature would help here? Enabling RSS is optional so you have all flexibility in terms how you'd like to manage feeds.