NFS on ZFS: make NFS export writable, but local mount read-only?

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From: Pat Maddox <pat_at_patmaddox.com>
Date: Tue, 18 Jul 2023 21:16:18 UTC

I have a dataset that is intended as an NFS export. I have all that 
working.

The thing is, I don’t want to be able to modify files on the host. It 
is purely a backup volume, so it should only be writable by NFS.

Is it possible to mount the dataset as writable for NFS, but read-only 
for local host?

Pat