Jenkins monitors executions of repeated jobs, such as building a software project or jobs run by cron. Among those things, current Jenkins focuses on the following two jobs: 1. Building/testing software projects continuously 2. Monitoring executions of externally-run jobs, This slackbuild tracks the Jenkins LTS branch. Groupname and Username You must have the 'jenkins' group and user to run this script, for example: groupadd -g 251 jenkins useradd -g 251 -u 251 -r -s /bin/bash -d /var/lib/jenkins jenkins This LTS supports Java 11, Java 17, or Java 21. The REQUIRES has zulu-openjdk21, but you can use your choice of version and vendor. https://www.jenkins.io/doc/book/platform-information/support-policy-java/