Flatpak

A Flatpak is a type of cross-distribution packaging format that is managed (including installation, configuration, upgrading, etc.) with its own package manager that is invoked by the flatpak command. This package manager is dependent on systemd, so is only suitable for systems like Fedora that have systemd installed. While Flatpak is not developed by the Fedora Project, or GNOME Foundation, it is perhaps best supported by Fedora and the GNOME desktop environment. This is because Fedora has had Flatpak in its official repository since the release of Fedora 23 on 3 November 2015.