/Adventure contains the sample code for the "adventure game" lessons.
It introduces the Try[T] monad that makes failure explicit.
/Socket contains the sample code for the "network programming" lessons.
It introduces the Future[T] monad that makes latency and failure explicit.
/Combinators and Extensions contain various combinators and extensions on Future[T]
using both async{ await{} } and val p = Promise[T](); ...; p.future.
Inevitably slides contain typos because we don't have IntelliJ integration in Keynote yet. When in doubt, consult the code samples here for the correct code.