kotlin upgraded, site started

gradle.properties

@@ -28,4 +28,10 @@ android.useAndroidX=true
 android.nonTransitiveRClass=true
 
 # other
-kotlin.native.cacheKind.linuxX64=none
+kotlin.native.cacheKind.linuxX64=none
+
+# Workaround: Ensure Gradle uses a JDK with `jlink` available for AGP's JDK image transform.
+# On this environment, the system JDK 21 installation lacks `jlink`, causing
+# :lynglib:androidJdkImage to fail. Point Gradle to JDK 17 which includes `jlink`.
+# This affects only the JDK Gradle runs with; Kotlin/JVM target remains compatible.
+org.gradle.java.home=/usr/lib/jvm/java-17-openjdk-amd64