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# ToaruOS
ToaruOS is a 64-bit, hobbyist, educational, Unix-like operating system built entirely from scratch. It includes a kernel, bootloader, dynamic linker, C standard library, composited windowing system, and several utilities and applications. All components of the core operating system are original, providing a complete environment in approximately 80,000 lines of C and assembly, all of which is included in this repository.
ToaruOS is a "complete" operating system for x86-64 PCs with plans for ports to other platforms.
![Screenshot](https://klange.dev/s/Screenshot%20from%202021-07-09%2019-34-56.png)
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.
There are no external runtime dependencies and all required source code, totalling roughly 80,000 lines of (primarily) C, is included in this repository, save for [Kuroko](https://github.com/kuroko-lang/kuroko), which lives separately.
![Screenshot](https://klange.dev/s/Screenshot%20from%202021-08-05%2009-50-57.png)
*Demonstration of ToaruOS's UI and some applications.*
## History
The ToaruOS project began in December 2010 and has its roots in an independent student project. The goals of the project have changed throughout its history, initially as a learning experience for the authors, and more recently as a complete, from-scratch ecosystem.
ToaruOS has been in development for over ten years, and the goals of the project have changed through out its life time.
ToaruOS 1.0 was released in January, 2017, and featured a Python userspace built on Newlib. Since 1.6.x, ToaruOS has had its own C library, dependencies on third-party libraries have been removed, and most of the Python userspace has been rewritten in C. More recent releases have focused on improving the C library support, providing more ports in our package repository, and adding new features.
When it was initiated in December 2010, the OS was a personal project, and its focus was on the individual learning of its author.
In April, 2021, work began on ToaruOS 2.0, which brings a rewritten kernel for x86-64 (and potentially other architectures) and support for SMP. The new "Misaka" kernel was merged upstream at the end of May.
With time, ToaruOS's relatively advanced graphical interface and other features have inspired new hobby OSes, and the goals of the project shifted towards providing a reliable learning resource.
From its initial release through the middle of 2018, ToaruOS's userspace was built on top of the Newlib C standard library implementation as well as various third-party libraries such as Cairo and Freetype.
Since the release of 1.6.x, all third-pary runtime dependencies have been removed or replaced, and ToaruOS has been entirely "in-house".
In April 2021, work began on ToaruOS 2.0, which brings a rewritten kernel for x86-64 (and potentially other architectures) and support for SMP. The new "Misaka" kernel was merged upstream at the end of May.
## Features
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### Notable Components
- **Misaka** (kernel), [kernel/](kernel/), the core of the operating system.
- **Misaka** (kernel), [kernel/](kernel/), a hybrid modular kernel, and the core of the operating system.
- **Yutani** (window compositor), [apps/compositor.c](apps/compositor.c), manages window buffers, layout, and input routing.
- **Bim** (text editor), [apps/bim.c](apps/bim.c), is a vim-inspired editor with syntax highlighting.
- **Terminal**, [apps/terminal.c](apps/terminal.c), xterm-esque terminal emulator with 256 and 24-bit color support.