First draft of initial user flow

BauSystem/BauSystem_Main/build.gradle.kts

@@ -19,6 +19,7 @@
 
 plugins {
     steamwar.java
+    kotlin("jvm") version "2.4.0"
 }
 
 tasks.compileJava {
@@ -26,8 +27,6 @@ tasks.compileJava {
 }
 
 java {
-    sourceCompatibility = JavaVersion.VERSION_21
-    targetCompatibility = JavaVersion.VERSION_21
 }
 
 dependencies {
@@ -46,4 +45,11 @@ dependencies {
 
     implementation(libs.luaj)
     implementation(files("$projectDir/../libs/YAPION-SNAPSHOT.jar"))
+    implementation(kotlin("stdlib-jdk8"))
 }
+repositories {
+    mavenCentral()
+}
+kotlin {
+    jvmToolchain(21)
+}