If we're plugging stuff, here's my little ecosystem I've been working on for about 8 months. It replaces (but is fully compatible with) navidrome/subsonic, iOS client, macOS client, tvOS client (with modern QR/code based login flow), WebUI, and soon, Android clients. Also supports local libraries.

Has neat stuff like remote-controlling other clients (zero conf/mdns/server relayed), modern user management (invite links, app passwords, api keys), the apps are pretty, low-resource, and consistent. Normal stuff like gapless, bit-perfect, share links, file-watching that is solid, etc.

Other killer feature is DSP/EQing that supports stuff like importing (or building) squig presets (great for IEM users), UPnP devices (from desktop, and supports DSP for room corrections etc). Should be a tad more lightweight than navidrome (though I do love navidrome <3).

https://koan.rocks