Resea [ríːseə] is a microkernel-based operating system written from scratch. It aims to provide an attractive developer experience and be hackable: intuitive to understand the whole design, easy to customize the system, and fun to extend the functionality.

See Documentation for more detials.

• A minimalistic and policy-free microkernel based operating system written entirely from scratch in C (and less than 5000 LoC). Everything is message passing!
• Supports x86_64 (with SMP), 64-bit ARM (Raspberry Pi 3), and ARMv6-M (micro:bit).
• Includes userspace servers like TCP/IP protocol stack and FAT file system driver.
• Provides easy-to-use APIs and every components are written in single-threaded event-driven approarch. It makes really easy to understand how Resea works and debug your code.
• Some attractive experimental features like Linux ABI emulation, Rust support, and Hardware-assisted Hypervisor (like Linux's KVM).

See Road Map for planned new features and improvements.

brew install llvm python qemu
pip3 install --user -r tools/requirements.txt
make menuconfig
make run

apt install llvm clang lld python3 qemu-system make
pip3 install --user -r tools/requirements.txt
make menuconfig
make run

If you have any questions, feel free to talk to us on Gitter or IRC.

We accept bug reports, feature requests, and patches on GitHub.

See LICENSE.md.