Mirus

Mirus is a hobby operating system project, written in C. It is not intended to be a production operating system, but rather a learning experience and a fun project to work on.

See docs/project-plan.md for the project plan, and current TODOs.

Design goals

Mirus takes inspiration from a variety of operating systems, notably beOS/Haiku, Windows NT, Plan 9, and Inferno. Some of the key design goals of Mirus are:

• Elegant test bed for new ideas and concepts. Mirus isn't intended to be a standard POSIX-compliant operating system. While this comes at the expense of compatibility, it allows for more experimentation and innovation.
• Secure by design. Mirus is designed with security in mind, and aims to provide a secure environment for running applications through the use of sandboxing, capabilities, and other security features.
• Modern architecture and feature set. Mirus is 64-bit native, uses UEFI to boot, and has a system architecture inspired by modern operating systems.

For more information on the design goals of Mirus, see docs/design-goals.md.

Components

• kernel a 64-bit hybrid kernel written in C and Assembly.
• hal - the hardware abstraction layer for Mirus providing a common interface for hardware devices.
• libs - a collection of libraries for use in Mirus kernel and userspace.

Building

To build Mirus, you will need to install all needed dependencies. You can use the scripts/install-deps.sh scripts to install dependencies on your platform.

Once the dependencies are installed, you can use xmake to build the kernel.

Bootable disk image

For building a bootable disk image to play with, you will want to build the make-iso recipe. This will create a bootable disk image with the kernel and bootloader pre-installed.

$ xmake make-iso

Note: Mirus is not a production-ready operating system! If you choose to try running it on real hardware, be aware that it may not work as expected, and could potentially damage your hardware.

Run in QEMU

You can use QEMU to run the disk image in a virtual machine with UEFI firmware.

$ xmake run-qemu-uefi

Building for development

See the docs/building.md file for more information on building Mirus for development.

License

This project is licensed under the terms of the MIT license.