Yes, I think someone who first started pushing for it was interested in embedding it in their C# app as the entry.
But it's just an .so that can be used in any app through the C ABI I gather.
I don't know about C# but I do know Java can use C code through the Java Native Interface. I wouldn't be surprised if .NET and Mono have something similar.
Golang has this as well and can also be compiled to a .so if desired.