Apps similar to ONU include Linux Mint, which is free and open source. Other options are Ubuntu, Debian, Fedora and Arch Linux. You're spoiled for choice with Operating Systems like ONU: we list more than 50 alternatives for Linux, Windows, self-hosting, Mac and Chrome OS.
SparkyLinux is a Debian-based Linux distribution which provides ready to use, out of the box operating system with a set of slightly customized lightweight desktops.
A purely functional package manager and an advanced distribution of the GNU operating system developed by the GNU Project—which respects the freedom of computer users.
Ubuntu Core, a minimalist rendition of Ubuntu , is a lightweight, transactionally updated operating system designed for deployments on embedded and IoT devices, cloud and more.
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