I have built a library for talking to the SparkCore from a .Net application. The library has two classes for communicating with the TinkerAPI which is loaded by default. It also can make generic calls to spark.function()'s and spark.variable()'s you have defined in your own code.
You can find the details in the article on my blog:
I’d enjoy any feedback and suggestions for moving forward… moving into github, etc.
I am excited to see the publish functionality and figuring out how to work it in!