diff --git a/build.gradle.kts b/build.gradle.kts
index 55c53e1..93b48af 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -44,16 +44,6 @@ import java.nio.file.LinkOption
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-// Buildscript
-buildscript {
-    // Repositories
-    repositories {
-        mavenLocal()
-        mavenCentral()
-        gradlePluginPortal()
-    }
-}
-
 // Plugins
 plugins {
     id("java-library")
@@ -113,8 +103,8 @@ allprojects {
     // Java
     java {
         // Java version
-        sourceCompatibility = JavaVersion.valueOf("VERSION_${property("languageJava") as String}")
-        targetCompatibility = JavaVersion.valueOf("VERSION_${property("languageJava") as String}")
+        sourceCompatibility = JavaVersion.toVersion(property("languageJava") as String)
+        targetCompatibility = JavaVersion.toVersion(property("languageJava") as String)
 
         if (!(hasProperty("java.skipToolchainSpecification") && property("java.skipToolchainSpecification") as String == "true"))
             toolchain {
@@ -130,7 +120,7 @@ allprojects {
         verbose = true
 
         // Set target metadata
-        jvmTarget = JvmTarget.valueOf("JVM_${property("languageJava") as String}")
+        jvmTarget = JvmTarget.fromTarget(property("languageJava") as String)
     }
 
     // Unit testing
@@ -218,17 +208,17 @@ allprojects {
     // -> Copy task
     tasks.register("copyGitProperties") {
         dependsOn(tasks.generateGitProperties)
+        inputs.file("${project.projectDir}/build/resources/main/git.properties")
 
         doLast {
             if (rootProject == project)
                 return@doLast
 
-            val target: File = file("${project.projectDir}/src/main/resources/sosengine-${project.name.replace(":", "-")}-git.properties")
-            val source: File = file("${project.projectDir}/build/resources/main/git.properties")
-
-            if (Files.exists(target.toPath(), LinkOption.NOFOLLOW_LINKS))
-                Files.delete(target.toPath())
-            Files.move(source.toPath(), target.toPath())
+            file(inputs.files.first())
+                .copyTo(
+                    file("${project.projectDir}/src/main/resources/sosengine-${project.name.replace(":", "-")}-git.properties"),
+                    overwrite = true
+                )
         }
     }
     tasks.processResources {
@@ -238,16 +228,17 @@ allprojects {
     // Gradle properties
     // -> Copy task
     tasks.register("copyGradleProperties") {
+        inputs.file("${project(":").projectDir.path}/gradle.properties")
+
         doLast {
             if (rootProject == project)
                 return@doLast
 
-            val target: File = file("${project.projectDir}/src/main/resources/sosengine-${project.name.replace(":", "-")}-gradle.properties")
-            val source: File = file("${project(":").projectDir.path}/gradle.properties")
-
-            if (Files.exists(target.toPath(), LinkOption.NOFOLLOW_LINKS))
-                Files.delete(target.toPath())
-            Files.copy(source.toPath(), target.toPath())
+            file(inputs.files.first())
+                .copyTo(
+                    file("${project.projectDir}/src/main/resources/sosengine-${project.name.replace(":", "-")}-gradle.properties"),
+                    overwrite = true
+                )
         }
     }
     tasks.processResources {
diff --git a/settings.gradle.kts b/settings.gradle.kts
index 901fc8c..3d4dc50 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -17,13 +17,19 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
+// Plugin management
+pluginManagement {
+    repositories {
+        mavenLocal()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+
 // Project settings
 rootProject.name = "sos!engine"
 
 // Subprojects
-// -> Root
-include("")
-
 // -> Base
 include("base")
 
diff --git a/testapp/build.gradle.kts b/testapp/build.gradle.kts
index c069440..ddbc122 100644
--- a/testapp/build.gradle.kts
+++ b/testapp/build.gradle.kts
@@ -32,7 +32,7 @@ dependencies {
 // Configure JAR
 tasks.withType<Jar> {
     manifest {
-        attributes.put("Main-Class", "de.staropensource.engine.testapp.Main")
+        attributes["Main-Class"] = "de.staropensource.engine.testapp.Main"
     }
 }
 
@@ -41,24 +41,37 @@ application {
     mainClass = "de.staropensource.engine.testapp.Main"
 
     // JVM arguments
-    val jvmArgs: MutableList<String> = mutableListOf()
-    // -> JVM
-    jvmArgs.add("-XX:+UnlockDiagnosticVMOptions")
+    applicationDefaultJvmArgs = buildList {
+        // Unlock more VM options
+        add("-XX:+UnlockDiagnosticVMOptions")
+        add("-XX:+UnlockExperimentalVMOptions")
 
-    if (hasProperty("jvm.logGC") && property("jvm.logGC") as String == "true")
-        jvmArgs.add("-Xlog:gc")
-    if (hasProperty("jvm.logJITandAOT") && property("jvm.logJITandAOT") as String == "true") {
-        jvmArgs.add("-XX:+PrintCompilation")
-        jvmArgs.add("-XX:+PrintInlining")
-    }
-    if (hasProperty("jvm.garbageCollector"))
-        when (property("jvm.garbageCollector")) {
-            "epsilon" -> jvmArgs.add("-XX:+UseEpsilonGC")
-            "serial" -> jvmArgs.add("-XX:+UseSerialGC")
-            "g1" -> jvmArgs.add("-XX:+UseG1GC")
+        // VM settings
+        // -> Log garbage collection
+        if (
+            hasProperty("jvm.logGC")
+            && property("jvm.logGC") as String == "true"
+        )
+            add("-Xlog:gc")
+
+        // -> Log JIT & AOT
+        if (
+            hasProperty("jvm.logJITandAOT")
+            && property("jvm.logJITandAOT") as String == "true"
+        ) {
+            add("-XX:+PrintCompilation")
+            add("-XX:+PrintInlining")
         }
-    // -> Jansi
-    jvmArgs.add("-Djansi.mode=force")
 
-    applicationDefaultJvmArgs = jvmArgs
+        // -> Select garbage collector
+        if (hasProperty("jvm.garbageCollector"))
+            when (property("jvm.garbageCollector")) {
+                "epsilon" -> add("-XX:+UseEpsilonGC")
+                "serial" -> add("-XX:+UseSerialGC")
+                "g1" -> add("-XX:+UseG1GC")
+            }
+
+        // Jansi
+        add("-Djansi.mode=force")
+    }
 }