shadowJar support

app/build.gradle.kts

@@ -5,9 +5,12 @@
  * For more details on building Java & JVM projects, please refer to https://docs.gradle.org/8.4/userguide/building_java_projects.html in the Gradle documentation.
  */
 
+import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
+
 plugins {
     // Apply the application plugin to add support for building a CLI application in Java.
     application
+    id("com.github.johnrengelman.shadow") version "8.1.1"
 }
 
 repositories {
@@ -41,3 +44,11 @@ tasks.named<Test>("test") {
     // Use JUnit Platform for unit tests.
     useJUnitPlatform()
 }
+
+tasks.withType<ShadowJar> {
+    archiveBaseName.set("xl")
+    archiveVersion.set("")
+    manifest {
+        attributes(mapOf("Main-Class" to "com.github.csolem.gradle.shadow.kotlin.example.App"))
+    }
+}