jellysub VS Booksonic-Air

To summarise what we've gotten to so far: - Jellyfin web can do this using Instant Mix feature, but instant mix is at present pretty basic (see discussion here: https://www.reddit.com/r/jellyfin/comments/o0eic8/what_is_instant_mix_actually_based_on_also_is/). It won't work very well at the level of "Artist" but starting from a specific track or album produces a pretty good mix for some music in my library. Instant mixes can be saved as playlists. - Some Jellyfin apps can do this: especially symfonium (android) has advanced features for making mixes. The only limitation here seems to be saving playlists back to jellyfin server. And if you don't have an android phone and sonixd has a very limited ability to create a (completely, and imho unhelpfully) random playlist. - There are more convoluted solutions. Jellyfin users can try to use Subsonic clients with jellyfin by installing a server shim, but it seems this isn't being developed anymore and I wasn't able to get it running. It is also possible to use jellyfin as an MPD server, so more generic clients can be used here too.

For the Jellyfin API it might be worth adding https://github.com/nvllsvm/jellysub, it's an API compatibility layer to let Subsonic-compatible apps query Jellyfin.

Subsonic

You should check out booksonic, works pretty well, fully open-source

Booksonic-air may be a good fit, it's directory based, and the search is pretty good. https://github.com/popeen/Booksonic-Air

You can check out booksonic https://booksonic.org/ pretty simple docker setup, its free and works fine with a basic a web ui.

mkdir /home/nginx/Tools/booksonic-air cd /home/nginx/Tools/booksonic-air wget https://github.com/popeen/Booksonic-Air/releases/download/v2112.2.0/booksonic.war chown -R nginx:nginx /home/nginx/Tools/booksonic-air/ /usr/lib/jvm/jdk-18/bin/java -jar /home/nginx/Tools/booksonic-air/booksonic.war -Dserver.port=4141

Getting back to the topic at hand. I looked in the Github project https://github.com/popeen/Booksonic-Air but I couldn't find any documentation for the REST API. Is there none or did I miss something?

I don't know of any app that will synch between different devices but I went ahead and set up my own Booksonic server. This allows me to listen through any browser or through the Android app.

Booksonic Air 2201.1.0, https://github.com/popeen/Booksonic-Air/releases/tag/v2201.1.0