There have been some occasional requests for exposing NSS via NFSv4 protocol. If this is of interest to you please, add a comment with the use case and up vote it.
Last time I had a look at Linux Desktop both KDE and Gnome refused to work without the right to define symbolic links in the $HOME folder. So while the concept of a common home folder for all OS is tempting OES might be not the right platform to do this. Or can I set symbolic links via NFS? It will not work on NSS through CIFS or NCP.
I'll just "bump" and join the choir by agreeing with Gerd's comment: we need to expose the same home directory for all users. It should be irrelevant which platform they log on from - Windows, Linux or MacOS.
And on a side note: if this "gateway function" could be combined with Cloud Integration in OES, but instead expose private cloud storage (i.e. Ceph/SES) as NSS volumes, it would be brilliant!
Exporting NSS volumes via NFSv4 is required to allow clients to benefit from lock-blocking, plus the ability to present each export as appearing to be a subdirectory of the pseudo-fs.