Flathub hosts user applications using the Flatpak distribution method. Flatpak allows applications to be compatible with almost all linux distros because they are compiled and run in a sandbox environment. You can know more about flatpak and flathub at https://flatpak.org/ and https://flathub.org/ As an example/template I did some tests here but I don't submit the PR back to Flathub for now as Flathub prefers the main author to perform the actual publication and maintenance of the applications. https://github.com/prodrigestivill/flatpak/tree/org.apache.jmeter
This issue has been migrated to GitHub: https://github.com/apache/jmeter/issues/5702