sbt 

以下が Scalaz 7 を試すための build.sbt だ:

scalaVersion := "2.11.0"

val scalazVersion = "7.0.6"

libraryDependencies ++= Seq(
  "org.scalaz" %% "scalaz-core" % scalazVersion,
  "org.scalaz" %% "scalaz-effect" % scalazVersion,
  "org.scalaz" %% "scalaz-typelevel" % scalazVersion,
  "org.scalaz" %% "scalaz-scalacheck-binding" % scalazVersion % "test"
)

scalacOptions += "-feature"

initialCommands in console := "import scalaz._, Scalaz._"

あとは sbt 0.12.3 から REPL を開くだけだ:

$ sbt console
...
[info] downloading http://repo1.maven.org/maven2/org/scalaz/scalaz-core_2.10/7.0.5/scalaz-core_2.10-7.0.5.jar ...
import scalaz._
import Scalaz._
Welcome to Scala version 2.10.3 (Java HotSpot(TM) 64-Bit Server VM, Java 1.6.0_51).
Type in expressions to have them evaluated.
Type :help for more information.

scala> 

Scalaz 7 から生成された API ドキュメントもある。