Cockpit is the modern Linux admin interface. We release regularly. Here are the release notes from version 229:

https://cockpit-project.org/blog/cockpit-229.html

Summary: - Shell: Any page can be the shell

You can get Cockpit here: http://cockpit-project.org/running.html

Cockpit 229 is available in Fedora 32 and 33: https://bodhi.fedoraproject.org/updates/FEDORA-2020-8bee823348 https://bodhi.fedoraproject.org/updates/FEDORA-2020-fde3b93273

Or download the tarball here: https://github.com/cockpit-project/cockpit/releases/tag/229