2021
HighLoadChannels - Protasov - Consensus on Fingers 0:00 of 43:44
    https://www.youtube.com/watch?v=BX0Pwywen2k
    https://www.highload.ru/spring/2021/abstracts/7078
https://github.com/nin-jin/slides/tree/master/consensus
https://habr.com/ru/company/timeweb/blog/575136/
    https://www.youtube.com/watch?v=0WaqDPzwd48