Workaround

launcher-dist/build.gradle.kts

@@ -1,3 +1,5 @@
+import io.gitlab.jfronny.scripts.*
+
 plugins {
     id("inceptum.application-standalone")
     id("org.beryx.jlink") version "2.26.0"
@@ -5,6 +7,7 @@ plugins {
 
 application {
     mainClass.set("io.gitlab.jfronny.inceptum.Inceptum")
+    mainModule.set("io.gitlab.jfronny.inceptum.launcher.dist")
     applicationName = "Inceptum"
 }
 
@@ -76,6 +79,12 @@ jlink {
     if (crosscompile) targetPlatform("win", "/root/java")
     jpackage {
         imageName = application.applicationName
+        if (crosscompile) {
+            outputDir = "/root/jpackage-out"
+            imageOutputDir = File(outputDir)
+            installerOutputDir = File(outputDir)
+        }
+        appVersion = versionStripped
         // vendor
         when (flavor) {
             "macos" -> {
@@ -104,4 +113,18 @@ jlink {
             }
         }
     }
-}
+}
+
+if (crosscompile) {
+    tasks.jpackage {
+        doLast {
+            val src = File("/root/jpackage-out")
+            val trg = buildDir.resolve("jpackage")
+            trg.mkdirs()
+            src.listFiles()!!.forEach {
+                println("Moving $it")
+                it.renameTo(trg.resolve(src.name))
+            }
+        }
+    }
+}