@dinov and @cleeds - for clarification, Aurender does not require you to use the internal bays for storing your music library. It absolutely has the ability to connect to a NAS on your network if that is the route you prefer to go. But there are benefits to installing the drives in the Aurender unit as it then does not risk any noise being leaked while the files are transferring from your NAS over Ethernet.
Likewise, the internal drives on an Aurender also act like a NAS on your network. You can access the drives and the files on them from any other device that can access your network.
So if you really want to use a different system to manage the music, you can still do that, and you can still use Aurender Conductor to navigate that file system and play back the music on your NAS. I hope that clarifies things.