Source mirror; https://github.com/g-pechorin/sstate.scala Won’t actually build, use the full repository here Releases (tags) https://github.com/g-pechorin/sstate.scala/tags "com.peterlavalle" %% "sstate" % ??? 'com.peterlavalle:sstate_2.12:???' SState SState is a cute little pure-functional FSM class in Scala that I wrote after seeing JEasyStates. The only real advantage of mine is that it can (probably) be dropped into a Scala.JS project without any magic. There’s a unit test at the foot of this doc showing how I test it.