register a new txt in dns inspector.dev (to validate the website property) https://central.sonatype.org/faq/how-to-set-txt-record/#choose-your-coordinates
requirements to have in order to publish in maven central https://central.sonatype.org/publish/requirements/
continue from "You also have to install a GPG.." after writing some code https://dzone.com/articles/how-to-create-a-java-library-from-scratch-to-maven