scalafix/project/plugins.sbt (4 lines of code) (raw):
resolvers += Resolver.sonatypeRepo("releases")
addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.13.0")
addSbtPlugin("com.eed3si9n" % "sbt-projectmatrix" % "0.9.0")
addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.5.2")