Setup Ceph NFS

What I'd like is to be able to mount my Navidrome music CephFS volume from outside the cluster (say, my desktop when I'm testing bandsnatch for #863). I *think* I might be able to do this with CephNFS? What I'm unsure about is if it's possible to add exports for existing CephFS volumes, and I haven't been able to glean a satisfying answer from the dox. So I guess I'll just try setting it up and see, eh?