What is the 10101 coordinator?
https://10101.finance/blog/what-is-the-10101-coordinator/

10101 aims to bring self-custodial p2p perpetual futures trading to users without sacrificing UX. Centralized exchanges are easy as they only have to keep a book updating all events on their own system.

But 10101 is distributed. Every user is running their own trading node through the 10101 app or dlc connect web app.