Serenity is a graphical 32-bit Unix-like operating system with 90s aesthetics and built for x86 systems.


FydeOS is described as 'Offers a choice for regular PCs to behave like Chromebooks with alternative supporting services, on-premise or in the cloud, with or without Google. Formerly known as "Flint OS"' and is a Linux Distro in the os & utilities category. There are more than 100 alternatives to FydeOS for a variety of platforms, including Linux, Self-Hosted, BSD, Windows and Mac apps. The best FydeOS alternative is Linux Mint, which is both free and Open Source. Other great apps like FydeOS are Debian, Fedora, Manjaro Linux and elementary OS.
Serenity is a graphical 32-bit Unix-like operating system with 90s aesthetics and built for x86 systems.




ALT Linux is a set of RPM-based, APT-managed operating systems built on top of the Linux kernel and Sisyphus package repository branches. ALT Linux Rescue is, well, the disaster recovery tool.




Knoppix is an operating system based on Debian designed to be run directly from a CD / DVD (Live CD) or a USB key (Live USB), one of the first of its kind for any operating system. When starting a program, it is loaded from the removable medium and decompressed into a RAM drive.


Maru makes personal computing more context-aware by giving you the best interface for your environment. That means when you're on the go, Maru is your phone; when you're at your desk, Maru is your desktop.


Maru is the most popular Android Tablet alternative to FydeOS.
CrunchBang++ is an open source and completely free [of cost (#!++ does include several of Debian’s non-free packages as well as the non-free repository)] computer operating system, designed as a continuation of the .




illumos is a free and open-source Unix operating system. It derives from OpenSolaris, which in turn derives from SVR4 UNIX and Berkeley Software Distribution (BSD). illumos comprises a kernel, device drivers, system libraries, and utility software for system administration.
A project providing a fully free (as in freedom) derivative of Arch Linux. Inheriting Arch's lightweight and flexibility, Parabola offers software freedom plus all power to the users.



openmamba GNU/Linux is a ready-to-use operating system for netbooks, notebooks, desktop and server personal computers.

ravynOS is a new open-source desktop operating system that aims to provide a similar experience and compatibility with macOS on x86-64 systems.


The CLIP OS project is an open source project maintained by the ANSSI (National Cybersecurity Agency of France) that aims to build a secure, multi-level operating system, based on the Linux kernel and a lot of free and open source software.