project/plugins.sbt (4 lines of code) (raw):

resolvers += Resolver.bintrayIvyRepo("twittercsl", "sbt-plugins") addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "2.1.1") addSbtPlugin("com.twitter" % "scrooge-sbt-plugin" % "22.12.0") // The dependency tree plugin isn't really needed but provides an in-browser // view via dependencyTree and dependencyBrowseTree: it’s bundled with SBT by // default, and just needs enabling addDependencyTreePlugin