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

https://github.com/knusbaum/void-packages NEW_apache-kafka-2.3.0
https://github.com/void-linux/void-packages/pull/14537

New package: apache-kafka-2.3.0.
Tested locally, able to bring up the server, produce and consume messages.

A patch file from https://github.com/void-linux/void-packages/pull/14537.patch is attached