project/plugins.sbt (4 lines of code) (raw):
addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "2.1.1")
resolvers += "twitter-repo" at "https://maven.twttr.com"
addSbtPlugin("com.twitter" % "scrooge-sbt-plugin" % "21.8.0")
addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.5.2")