I am using a normal desktop case with an external usb-c 8-bay JBOD drive enclosure from Mediasonic. I’m using mdadm to combine the drives with RAID-6. I know I’m not getting the performance that I could with native SATA, but it can still saturate my 1Gbps network, so it’s good enough for serving video, audio, and some other web-based apps.
I just use Navidrome’s web client. It does everything I need. DSub on Android.