mkdir /Volumes/disk sudo mount -o -P nfsserver:/exported/disk/directory /Volumes/disk
Then to unmount
sudo umount /Volumes/disk
This works. But the problems are the usual NFS stuff. If you copy a file there, the uid/gid will be your setting on your mac, which is unquestionably not the same as they are on your nfs server. And because your uid isn’t the same, you’ll probably not be able to edit the files in your home area because you don’t own them.