AlmaLinux OS
AlmaLinux OS is an open-source, community-driven project that is built from the source code of Red Hat Enterprise Linux (RHEL). AlmaLinux is a completely binary compatible fork of RHEL and it is maintained by AlmaLinux OS Foundation which is a register non-profit.
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Solus
Solus is a Linux distribution built from scratch. It uses a forked version of the PiSi package manager, maintained as "eopkg" within Solus, and its flagship edition uses the Budgie desktop environment.