Personal music servarr with a mobile app?

I've been on Tidal for years, but it's frustrating to use for lots of reasons (they only pay their artists slightly better than Spotify, streaming services are flaky, works poorly with my DLNA home speakers). I'm looking for something I can selfhost with the following features, and I would appreciate any suggestions in this direction:

• integrates with downloading services (nzbget and qbittorrent; or better yet prowlarr)
• has a suggestions/radio/mix feature, or integrates well with something that does. I currently use jellyseerr for other kinds of media, so something in that vein.
• has a mobile app which lets me download all the tracks I want, or integrates with one that does. Big bonus points if the mobile app can play to DLNA speakers.

A bit about my lab:

• Proxmox-based, lots of VMs and containers on 2 different cluster nodes. Lots of underprovisioned RAM in the cluster. Nodes run Fedora and I'm partial to quadlets, but I can convert anything to a quadlet if I need to.
• Airvpn port tunneling is available to me.

TIA!