Eh. Ish. They only support playback within a browser and have deprecated native playback support years ago. Also their ToS technically doesn't let you do a looot of things you may want. Like caching. Srsly, you're not allowed to cache things. Many 3rd parties stopped supporting spotify because the dev ToS kept getting worse.
Regardless, I'm excited about this little project even if it goes against the ToS.
Regardless, I'm excited about this little project even if it goes against the ToS.