42 Kernel From Scratch

A minimalist kernel from scratch, written in Zig 0.13.

Overview

42_KFS is a low-level educational operating system project. It is designed to help understand OS fundamentals, boot processes, memory management, and hardware interaction—all implemented in Zig for safety and performance.

Features

• Written entirely in Zig 0.13 for modern language safety and performance

• Minimalist kernel: simple, clear, and well-documented codebase

• Bootloader setup and kernel entry

• Basic device drivers (VGA text output, keyboard input, etc.)

• A shell:
  

• Kernel panics:
  

• Stack trace:
  

Requirements

• Zig 0.13
• QEMU or another x86 emulator/virtual machine

Getting Started

1. Clone the repo:

   git clone https://github.com/Kbz-8/42_KFS.git
   cd 42_KFS

2. Install dependencies:

   • Download Zig 0.13
   • Install QEMU:
     sudo apt install qemu (Debian/Ubuntu)
     or see QEMU downloads

3. Build the kernel:

   zig build

4. Run in QEMU:

   zig run

Acknowledgments

• Zig Programming Language
• OSDev Wiki

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