install gradle: https://linuxhint.com/installing_gradle_ubuntu/ wget -c https://services.gradle.org/distributions/gradle-7.5.1-bin.zip -P /tmp sudo unzip -d /opt/gradle /tmp/gradle-7.5.1-bin.zip create sample application with gradle: https://docs.gradle.org/current/samples/sample_building_java_applications.html install jdk18 if not in apt https://askubuntu.com/questions/1421306/how-to-install-openjdk-18 * wget the tar * unpack to /opt * set the bin folder in the JAVA_HOME ev