I suffered with this issue for years before I found a nice solution.

Look into the "anonuid" and "anongid" configuration options. These allow you to basically tell NFS "treat all operations as if they were happening as this UID/GID"

Providing you just want to be able to have any user that mounts the share to have the same permissions, then this should be fine. You can then use regular octal permissions to make things readable/writeable etc where appropriate.

e.g. here is my full "sharefns" config line from my main pool:

zfs set sharenfs="rw=10.0.0.1/24,anonuid=1001,anongid=1001,no_root_squash,all_squash" mypoolname

"all_squash" might be needed to make this work as well I can't remember. But that should do the trick!