Patterns
A list of tutorials and FP patterns demonstrating solutions to common programming tasks in a pure FP way
Typeclasses
Functor, Applicative, Monad and all their friends so you can take advantage of ad-hoc polymorphism in Kotlin
Data types
Option, Try, Either, Eval, NonEmptyList and many other data types based on algebraic properties
Integrations
Integrations with Rx2 and other popular frameworks and data types in the Kotlin ecosystem