[ninkendo]

What are they though? Is this a library for an existing language? A runtime scheduler like the one that does goroutines in Go? If it were open sourced, how would I use it?

[thedance]

It’s just a library that allows easier development of C++ servers in the synchronous, thread-per-requests style, similar to working in Go but a bajillion times better because it’s not in Go.

[Blackthorn]

All of the above, and more -- kernel enhancements. See the linked paper, they detail what they do for the kernel side at least.