Have the streaming services made it any easier of late for a indie musician to publish their works? I'm several years out of date, but I remember at one point I

Have the streaming services made it any easier of late for a indie musician to publish their works? I'm several years out of date, but I remember at one point I'd looked into it, and the closest you could get to self-publishing was to go through an indie distributor like CD Baby. But at no point could you actually upload MP3 files and album information directly to Spotify.