How to "connect" NASM and C#?

Question

Operating Systems

Question: How to properly "connect" NASM and C# to create an OS?

Answer 1

You write C# runtime and other low end stuff in assembler, and then you write everything else in sharpe.

Answer 2

If we discard the nuances, then no way.

Answer 3

Something like this: https://www.gocosmos.org/