Do you mean the curation rewards because I didn't know about such change?
That's like 5-6 years ago... hf15 maybe... (edit: it was hf19)
What's this? I didn't find something fitting.
this: https://gitlab.syncad.com/hive/haf
but to show how ridiculously overengineered it is check this graph (scroll down a little)
https://gitlab.syncad.com/hive/haf/-/blob/develop/src/hive_fork_manager/Readme.md
That took years and large sums of money.
I'd guess ~3 people are using it today.
Very late I say thank you very much for your answer and the links! But as a layman I understand very few of the latter topic.