Apps similar to Debian include Linux Mint, which is free and open source. Other options are Ubuntu, Fedora, Arch Linux and CachyOS. There's no shortage of Operating Systems like Debian, with more than 100 alternatives for Linux, self-hosting, Mac, Windows and Chrome OS.
The Zeal Operating System is a modernized, professional fork of the 64-bit Temple Operating System. Guiding principles of development include transparency, full user control, and adherence to public-domain/open-source implementations.
Lunar Linux is a source based Linux distribution. It is built entirely by compiling source code, using custom optimizations.
AmigaOS is the proprietary native operating system of the Amiga and AmigaOne personal computers, introduced with the launch of the first Amiga, the Amiga 1000, in 1985.
Belgium
EU
GNU-Darwin aims to be the most free software distribution. Our mission is two-fold: Focus on projects that leverage our unique combination of Darwin and GNU, and help users to enjoy the benefits of software freedom.
Risc OS is an open-source OS specifically designed to run on the ARM chipset.
United Kingdom
Infinitive OS is an open-source project created to replace windows and macOS, it mounts the latest versions of the Linux kernel and contains open source components but also proprietary software. It has the KDE desktop environment pre-installed
Live bootable linux CD supported by US department of defense, featuring firefox, thunderbird, word processor, and reads USB flash drives.
Minoca OS is a general purpose operating system designed specifically for feature-rich embedded devices. It's got all the high-level functionality that you've come to expect from an operating system, but offers it in a fraction of the memory footprint.
Canada
A libre open source Linux operating system. Focused on ease of use, simplicy, and flexibility to adapt and change.
We built CageOS to power Community Cube. It’s entirely an open source platform, designed to ensure your privacy and security.
ParticleOS is a fully customizable immutable distribution implementing the concepts described in Fitting Everything Together.
ExectOS aims to be a stable and flexible, general purpose operating system written from scratch. It is designed to be modular, maintainable and compatible with existing software. It implements a brand new XT architecture and features own native application interface.
