Mount a raspberry pi 4 directory (raspbian) exported by NFS on a NeXTStep 3.3

Hello,
I have a private server that I use for NAS, and have exported a directory over NFS.
Is it possible to mount it on a NeXT machine (black hardware) ? I can mount it on a modern macos X with the command :
sudo mount -t nfs -o nolock,resvport vpnserver:/shareddrive/CVSRepos /tmp/nfstest/
I have followed the NFS Manager app route, creating an entry on the imported directories panel, but altough it does not complain, I can't see the contents of the remote directory.

I used to be able to do it this way, when I had a mac pro 3.1 exporting the directory, but I have now moved to a raspberry pi, as it consumes much less power.

Thanks,
Regards

I suspect that the standard NFS server is no longer configured to speak the NFS v2 UDP protocol. Here's a discussion how to re-enable NFS v2 on an older Ubuntu version, I would assume that it works in a similar way on Raspbian:

https://askubuntu.com/questions/974696/how-can-i-make-the-nfs-server-support-protocol-version-2-in-ubuntu-17-10 (https://askubuntu.com/questions/974696/how-can-i-make-the-nfs-server-support-protocol-version-2-in-ubuntu-17-10)

I found this page a while back and bookmarked it for future use. Hope this helps.

https://www.jonandnic.com/2020/08/28/nextstep-openstep-nfs-file-share-with-a-raspberry-pi/ (https://www.jonandnic.com/2020/08/28/nextstep-openstep-nfs-file-share-with-a-raspberry-pi/)

I managed to mount the folder with a mount command, just like explained in the link posted by @Nitro
I had to allow the NFS versions 2,3 and 4
Thanks a lot

I can mount the NFS directory as root. How do I mount it as a regular user ?
I am aware of fstab, where as per the man page, there is no user option like in linux, so it's not possible to do it ?