KIP-500
https://github.com/apache/kafka/blob/trunk/config/kraft/README.md

2021
https://noti.st/vikgamov/XbJszq/you-can-go-your-way-kafka-without-zookeeper
    https://www.youtube.com/watch?v=YK2gtCBXs_E
https://www.confluent.io/blog/kafka-without-zookeeper-a-sneak-peek/
    https://habr.com/ru/company/southbridge/blog/552688/
2020
https://www.confluent.io/blog/removing-zookeeper-dependency-in-kafka/
https://www.infoq.com/presentations/kafka-zookeeper/