project/plugins.sbt (4 lines of code) (raw):
addSbtPlugin("com.github.sbt" % "sbt-pgp" % "2.2.1")
addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "3.11.3")
addSbtPlugin("com.github.sbt" % "sbt-release" % "1.0.15")
addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "2.2.0")