Hi,
I’ve built my own NAS recently and I’m trying to get the max use out of it. I seem to be unable to find any iOS music app that integrates with CarPlay except VLC.
VLC works “okay” for streaming files that are on my phones local storage but it’s quite glitchy and sometimes tends to crash or becomes unresponsive. However the network shares are not accessible to navigate trough on the CarPlay dashboard and either I’m missing something but I can’t add any network shared folders to the Albums which are accessible on the dashboard.
BONUS: If the app allows transcoding so I don’t have to stream FLAC over mobile data, that would be a big time saver.

Emby has transcoding and audio only playback support for CarPlay
Well, Emby looked fine until I’ve set everything up and went to try it and it won’t even let me unless I pay. I’ll leave this one as a backup for later but thanks.
Jellyfin is a direct fork of Emby so I wouldn’t even bother with it.
Jellyfin+jellify seem to be good open source options
Broken for CarPlay, unusable. Jellyfin stutters like hell when streaming to wireless CarPlay and Jellify stops playback after 2s. For now I’ve settled for Manet. But thatnks! Jellify looks good for music it just does not work for my use case.
Good thing there was another app option that worked!