Aurora
Aurora is a Fedora Silverblue-based Linux distribution with the goal of being a general-purpose workstation. It uses the KDE Plasma desktop.
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MocaccinoOS
MocaccinoOS is an independently-developed Linux distribution that has its origins in source-based Gentoo Linux and Sabayon Linux. It uses a custom-built package manager called "Luet", which acts as a front-end for container-based software.