It works

build.gradle.kts

@@ -1,3 +1,6 @@
+import org.gradle.api.tasks.bundling.Jar
+import org.gradle.api.tasks.bundling.Zip
+
 plugins {
     id("java")
 }
@@ -14,4 +17,15 @@ repositories {
 
 dependencies {
     implementation("org.gotti.wurmunlimited:server-modlauncher:0.46")
-}
+}
+
+tasks.register<Zip>("dist") {
+    into("mods") {
+        into(project.name) {
+            from(tasks.named<Jar>("jar"))
+        }
+        from(fileTree("mods") { include("*") })
+    }
+
+    archiveFileName.set("${project.name}.zip")
+}