Licence 3-Clause BSD and others | https://rockylinux.org
We’re usually very into Debian-based Linux, here at APC, but don’t want you to think that we’ve anything against RPM distros. One of the best known is Red Hat Enterprise Linux (RHEL), a commercial version of Linux.
This may sound counterintuitive, as the whole ethos of Linux is one of free and open source software.