Yes, shares definitely work with my Synology NAS using NFS. Volumio’s NAS discovery doesn’t work for my setup, but manual configuration has always been straightforward.
On the Synology NAS, you need to:
(1) know the path of your share on the NAS … my shared folder ‘Music’ path is actually ‘/volume1/Music’;
(2) enable the NFS service from ‘File Services’ in the ‘Control Panel’;
(3) enable NFS permissions for the device (Volumio IP address) accessing it by editing the ‘Shared Folder’ permissions for ‘Music’.
This settings of permissions for NFS may be a problem if your Volumio device does not have a static IP address, although I believe, but haven’t tried personally, that you can use a “network segment” here to cover a range of addresses.
In the Volumio UI, you need to:
(1) choose an alias (anything you want to call your NAS);
(2) add the NAS IP address in the form 192.168.1.x.y;
(3) add the NAS path to the shared folder eg. /volume1/Music;
(4) choose NFS as file share type.
You do not need to add filename, password or further options