Open Source OS & Utility Software
SerenityOS
SerenityOS is a graphical Unix-like operating system for desktop computers. The operating system is built from scratch in C++, by the Swede Andreas Kling and a community of developers of all levels. SerenityOS is a love letter to '90s user interfaces with a custom Unix-like core that is built form the ground-up to appeal to today's power-users that want to get things done. The build is monolithic in nature, while allowing anyone to contribute to the core, UI and software for the system.
Raspbian
Raspbian is a Debian-based operating system that is optimized to work on Raspberry Pi hardware. Along the the core operating system, Raspian provides over 35,000 packages of pre-compiled software that are easy to install and use for your next Raspberry Pi build.
MX Linux
MX Linux is a Debian-based Linux distribution created by the MX community. The operating system is a cooperative venture between antiX and MX Linux communities. MX Linux desktop environment is based on Xfce and provides a fast, low-resource and friendly experience. It includes modular core components for the full functionality expected from a modern desktop environment. A collection of powerful and handy “MX Tools” that cover a range of actions from boot options to repository management. A fast package manager that can install from Popular Applications, MX Test Repo, Debian Backports and Flatpaks.
Fedora
Fedora is a free and open-source Linux distribution developed by the community-supported Fedora Project. The project is primarily sponsored by the IBM subsidiary Red Hat while also receiving additional support from other companies. Fedora is used both on desktops and on servers where it power enterprise-level systems and provides the latest datacenter technologies.
Garuda Linux
Garuda Linux is a free and open-source Arch-based Linux distribution. The mission of Garuda Linux is to provide a stable and easy to install version of Arch Linux. Garuda Linux supports the following desktop environments KDE, GNOME, Xfce, Cinnamon, MATE, LXQt-kwin, Deepin, Wayfire, BSPWM and i3wm and can easily be installed with the Calamares installer. On top of that, Garuda Linux provides GUI's for package management with Pamac, kernel and driver management with Garuda Settings Manager, GPU switching for Optimus laptops with Optimus Manager, manage common tasks with Garuda Assistant, and a GUI for installing curated gaming software called Garuda Gamer.
Q4OS
A fast and friendly, desktop oriented operating system based on Debian Linux. Q4OS provides a set of dedicated utilities and specific optimizations, combined with a focus on getting a productive system easily. This makes it ideal for people who want to get a working environment tailored to individual needs and preferences. Q4OS is a also a good choice for virtual cloud environments due to its very low hardware.
Tails
The Amnesic Incognito Live System or Tails for short is a portable operating system that protects you against surveillance and censorship. The operating system can started from a USB stick on any macOS, Linux or Windows computer, leaving no trace on that computer after it has been shutdown. Allowing you to make any computer into a Tails protect environment free of surveillance. Tails includes a variety of open source tools that can be used to browse the web, edit document and communicate saftley. Including Tor, Tor Browser, Pidgin, Network Manger, VeraCrypt, GNUPG, MAT, KeePassXC, GtkHash and many more.
Todo.txt
With Todo.txt you can track your performance in a simple text file. Todo.txt provides a simple and intuetive text-based user interface that can be used in-application or in a command line tool of your choice. With a simple but powerful shell script called todo.sh, you can interact with todo.txt at the command line for quick and easy, Unix-y access.
JingOS
JingOS is a free and open-source Linux distro designed specifically for tablets. The operating system take design ideas from iOS and iPad and brings them to Linux eco-system. It comes several basic mobile Linux apps, including Calendar, Timer, Files, Media Player, and Calculator. Yet it is still a fully functional operating system that can run Linux-based desktop apps like VS Code, Libre Office, Kdenlive and more. Allowing users to be as productive as they would on a desktop computer.
Debian
Debian is a free and open-source operating system and GNU/Linux distribution that is openly developed by the community-supported Debian Project. The distribution was first released in 1993 and today it is the base of many other Linux-based distribution such as the popular Ubuntu. The project includes over 59000 packages, precompiled software bundled up for easy installation on your machine.