Operating Systems

SerenityOS

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Website

Source Code

License: BSD 2-Clause

Description:

A graphical Unix-like operating system for desktop computers! SerenityOS is a love letter to ’90s user interfaces with a custom Unix-like core. It flatters with sincerity by stealing beautiful ideas from various other systems. Roughly speaking, the goal is a marriage between the aesthetic of late-1990s productivity software and the power-user accessibility of late-2000s *nix.

Visopsys

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Website

Source Code

License: GPLv2

Description:

Visopsys (VISual OPerating SYStem) is an alternative operating system for PC-compatible computers written from scratch and developed primarily by a single hobbyist programmer since 1997. Visopsys is free software and the source code is available under the terms of the GNU General Public License. The libraries and header files are licensed under the terms of the GNU Lesser General Public License.

ToaruOS

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Website

Source Code

License: NCSA

Description:

ToaruOS is a “complete” operating system for x86-64 PCs and experimental support for ARMv8. While many independent, hobby, and research OSes aim to experiment with new designs, ToaruOS is intended as an educational resource, providing a representative microcosm of functionality found in major desktop operating systems. The OS includes a kernel, bootloader, dynamic shared object linker, C standard library, its own composited windowing system, a dynamic bytecode-compiled programming language, advanced code editor, and dozens of other utilities and example applications.

CBL-Mariner

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Website

Source Code

License: MIT

Description:

CBL-Mariner is an internal Linux distribution for Microsoft’s cloud infrastructure and edge products and services. CBL-Mariner is designed to provide a consistent platform for these devices and services and will enhance Microsoft’s ability to stay current on Linux updates.

/e/OS/

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Website

Source Code

License:

Description:

/e/OS is an open-source mobile operating system paired with carefully selected applications. They form a privacy-enabled internal system for your smartphone. And it’s not just claims: open-source means auditable privacy. /e/OS has received academic recognition from researchers at the University of Edinburgh and Trinity College of Dublin.