I made a note about it earlier, take a look. You should succeed.
Have you seen this note?
mkdir ~/NFSOS9Share
sudo nano /etc/exports
/Users/test001/NFSOS9Share
Instead of test001, enter your username on macOS
You need to allow the nfsd daemon to work with the disk:
Settings -> Privacy and Security -> Full Disk access, +, command+G, /sbin/, search for the nfsd file in sbin.
This is how it should turn out:
You check the configuration
nfsd checkexports
There should be no errors or other messages.
Restart the NFS server.
sudo nfsd restart
If a firewall is enabled on macOS, you need to add a rule:
export PATH=$PATH:/usr/libexec/ApplicationFirewall
sudo socketfilterfw --add /sbin/nfsd
To make sure everything is fine, don't forget to set access rights to the directory for writing files from Mac OS 8/9
If the computers are connected by a network cable, the MacNFS on the side of your Powerbook will determine the NFS server through broadcast requests, you will only have to click to connect.
That's all.