OpenOS

OpenOS is an educational, open-source operating system built from scratch for the x86 architecture.

The goal is to build a small, understandable OS from zero, inspired by hobby OS projects like MyraOS, xv6, and OSDev examples — but implemented with our own code, fully documented, and open for community contribution.

🎯 Mission

To create a collaborative OS development environment where students, beginners, and low-level enthusiasts can learn:

• How CPUs boot an OS
• What a kernel actually does
• How memory, interrupts, and drivers work
• How processes and syscalls operate
• How filesystems and user programs work

All with clean, simple, modern C + Assembly code.

🚀 Features (planned)

• Multiboot-compatible 32-bit kernel
• VGA text output
• Interrupt handling (IDT, ISRs, IRQs)
• Physical & virtual memory management (paging)
• Kernel heap allocator
• Basic drivers (keyboard, PIT, screen)
• Process abstraction + simple scheduler
• Syscalls + userland programs
• (Later) Toy filesystem + maybe a GUI

🛠️ Build & Run

Requirements

• gcc (32-bit)
• nasm
• make
• qemu-system-i386
• grub-mkrescue

Build

make

Run

./tools/run-qemu.sh

🤝 Contributing

OpenOS is open for contributions at all levels:

• Code
• Documentation
• Bug fixes
• New features
• Roadmap proposals

Everything is welcome.

📄 License

MIT License — free to use, modify, and contribute.