Show HN: Spotitube – synchronize Spotify collections from external providers

Some time ago I published here about Spotitube, a side project I had been working on to synchronize Spotify collections by fetching blobs from somewhere in the internet (e.g. YouTube). In the past few months it's undergone a huge rewrite which I think has let it become a nicer piece of software. I could definitely use some feedback, if anyone feels like it :)