There is a new pull request by ahesford against master on the void-packages repository

https://github.com/ahesford/void-packages zfs-2.1.0
https://github.com/void-linux/void-packages/pull/31771

zfs: upgrade to 2.1.0
Works on `x86_64` and within ZFSBootMenu. Adds a few new features so could use a bit of testing.

cc: @Vaelatern @ericonr @zdykstra 

A patch file from https://github.com/void-linux/void-packages/pull/31771.patch is attached