diff --git a/material/conferences/2024-11-12-paris-jug/javafxdemo/app/build.gradle.kts b/material/conferences/2024-11-12-paris-jug/javafxdemo/app/build.gradle.kts
index 1f5c1f6..3ba2295 100644
--- a/material/conferences/2024-11-12-paris-jug/javafxdemo/app/build.gradle.kts
+++ b/material/conferences/2024-11-12-paris-jug/javafxdemo/app/build.gradle.kts
@@ -54,7 +54,7 @@ javafx {
 
 application {
     // Define the main class for the application.
-    mainClass = "org.example.AppKt"
+    mainClass = "org.example.App"
 }
 
 tasks.named<Test>("test") {
diff --git a/material/conferences/2024-11-12-paris-jug/javafxdemo/app/src/main/kotlin/org/example/App.kt b/material/conferences/2024-11-12-paris-jug/javafxdemo/app/src/main/kotlin/org/example/App.kt
index 55fdc2f..076bc6a 100644
--- a/material/conferences/2024-11-12-paris-jug/javafxdemo/app/src/main/kotlin/org/example/App.kt
+++ b/material/conferences/2024-11-12-paris-jug/javafxdemo/app/src/main/kotlin/org/example/App.kt
@@ -1,8 +1,32 @@
 package org.example
 
-class App : Application() {
+import javafx.application.Application
+import javafx.geometry.HPos
+import javafx.stage.Stage
+import ktfx.coroutines.onAction
+import ktfx.dialogs.infoAlert
+import ktfx.launchApplication
+import ktfx.layouts.*
 
-}
-fun main() {
-    println(App().greeting)
+class App : Application() {
+    override fun start(stage: Stage) {
+        stage.scene {
+            gridPane {
+                hgap = 10.0
+                vgap = 10.0
+                label("First name").grid(0, 0)
+                textField().grid(0, 1)
+                label("Last name").grid(1, 0)
+                textField().grid(1, 1)
+                button("Say hello") {
+                    onAction { print("Clicked") }
+                }.grid(2, 1)
+            }
+            stage.show()
+        }
+    }
+    companion object {
+        @JvmStatic
+        fun main(vararg args: String) = launchApplication<App>(*args)
+    }
 }