[johnm1019]

Disclaimer: IANA kernel developer.

Is there any benefit to having those specialized developers create frameworks or libraries in Userland which other developers can leverage? This way they remain the interface to uncooperative hardware, but the code is in Userland so the bold folks can try their own approach.

[dorlaor]

Seastar.io is another one, it's an async engine that utilizes all of the cores in a modern system and is the heart of Scylla's DB. However, it's complex to use it correctly

[loeg]

That's basically DPDK / SDPK.