https://github.com/facebook/proxygen

2021
MetaOpenSource - Explain Like I'm 5 : Proxygen 0:00 of 3:15
    https://www.youtube.com/watch?v=OsrBYHIYCYk
2014
https://engineering.fb.com/2014/11/05/production-engineering/introducing-proxygen-facebook-s-c-http-framework/