diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e84012c..5fbc50d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -63,7 +63,7 @@ jobs:
         run: sbt '++ ${{ matrix.scala }}' test
 
       - name: Compress target directories
-        run: tar cf targets.tar target core/target project/target
+        run: tar cf targets.tar target core/target cli/target project/target
 
       - name: Upload target directories
         uses: actions/upload-artifact@v3
diff --git a/RELEASING.md b/RELEASING.md
new file mode 100644
index 0000000..769e4e7
--- /dev/null
+++ b/RELEASING.md
@@ -0,0 +1,12 @@
+## Core JAR
+
+* [ ] create and tag the release via the GitHub web UI
+* [ ] check the GitHub Actions log to see that publishing succeeded
+* [ ] wait for the artifact to appear on Maven Central
+
+## CLI jar
+
+* [ ] locally, on JDK 8, run `sbt cli/assembly`
+* [ ] rename the resulting JAR to just `jardiff.jar`
+* [ ] attach the JAR to the release in the GitHub web UI
+* [ ] PR the change to the [homebrew formula](https://github.com/retronym/homebrew-formulas/blob/master/jardiff.rb), using `shasum -a 256 jardiff.jar` to compute the SHA
diff --git a/build.sbt b/build.sbt
index 04df73b..963a2f6 100644
--- a/build.sbt
+++ b/build.sbt
@@ -34,7 +34,8 @@ inThisBuild(Seq[Setting[_]](
         "SONATYPE_USERNAME" -> "${{ secrets.SONATYPE_USERNAME }}"
       )
     )
-  )
+  ),
+  headerLicense := Some(HeaderLicense.Custom("Copyright (C) Lightbend Inc. <https://www.lightbend.com>")),
 ))
 
 ThisBuild / publishMavenStyle      := true
@@ -44,20 +45,21 @@ ThisBuild / pomIncludeRepository   := (_ => false)
 
 lazy val root = (
   project.in(file("."))
-  aggregate(core)
+  aggregate(core, cli)
   settings(
     name := buildName,
     publish / skip := true,
+    publishArtifact := false,
+    publish := {},
+    publishLocal := {}
   )
 )
 
 val AsmVersion = "9.6"
 
-lazy val core = (
-  project.
+lazy val core = project.
   settings(
     libraryDependencies ++= Seq(
-      "commons-cli" % "commons-cli" % "1.6.0",
       "org.ow2.asm" % "asm" % AsmVersion,
       "org.ow2.asm" % "asm-util" % AsmVersion,
       "org.scala-lang" % "scalap" % System.getProperty("scalap.version", scalaVersion.value),
@@ -67,12 +69,23 @@ lazy val core = (
       "ch.qos.logback" % "logback-classic" % "1.3.11",
       "org.scalatest" %% "scalatest" % "3.2.17" % Test,
     ),
-    name := buildName + "-core",
-    headerLicense := Some(HeaderLicense.Custom("Copyright (C) Lightbend Inc. <https://www.lightbend.com>")),
+    name := buildName + "-core"
+  )
+
+lazy val cli = project.
+  settings(
+    libraryDependencies ++= Seq(
+      "commons-cli" % "commons-cli" % "1.6.0",
+    ),
+    name := buildName + "-cli",
     assembly / assemblyMergeStrategy := {
       case "rootdoc.txt" => MergeStrategy.discard
       case x if x.endsWith("module-info.class") => MergeStrategy.discard
       case x => (assembly / assemblyMergeStrategy).value(x)
     },
-  )
-)
+    // cli is not meant to be published
+    publish / skip := true,
+    publishArtifact := false,
+    publish := {},
+    publishLocal := {}
+  ).dependsOn(core)
diff --git a/core/src/main/scala/scala/tools/jardiff/Main.scala b/cli/src/main/scala/scala/tools/jardiff/Main.scala
similarity index 100%
rename from core/src/main/scala/scala/tools/jardiff/Main.scala
rename to cli/src/main/scala/scala/tools/jardiff/Main.scala