The creator and lead contributor has been finishing up his school but I am not sure of his plans for the future. There is a book coming out on the subject, https://pragprog.com/book/rwscala/modern-systems-programming... and I am hoping it will continue to grow and evolve.
Yes, that is true but eventually this could be lifted. There is ongoing work getting the compiler compiled with Scala Native as well as other work related to pulling the code related to build out of the sbt build that requires the JVM. This could make a native build chain possible.