Scarlet

Run binaries from multiple operating systems on a single kernel. Linux, xv6, and more — all natively, all together.

How It Works

Multi OS Compatibility, Even GUI

Run binaries from different operating systems natively. Linux, xv6, and Scarlet applications work together seamlessly — including graphical applications.

Scarlet Shell

  # Running Linux binary on Scarlet Shell 
  $  uname -a 
 Linux scarlet 6.1.0-scarlet riscv64 GNU/Linux 
 # Pipe between Scarlet native and Linux binary 
  $  scarlet_hello | busybox cat 
 Hello from Scarlet!  

Scarlet Native apps (ScarletUI) and Linux GTK3 applications running on the same desktop

Features

Built for Flexibility

Multi-ABI Support

Run Linux, xv6, and other OS binaries natively without virtualization

Written in Rust

Memory-safe kernel with Rust's safety guarantees

SWS & Scarlet UI & Wayland Bridge

Native window system protocol and UI framework with Wayland compatibility

Scarlet Package Manager

SCPM - Native package management system for Scarlet applications and libraries

Runtime Delegation

Execute binaries via userland runtimes (Wasm, emulators)

Built-in Hypervisor

Type-2 VMM with RISC-V H-extension and AArch64 virtualization

Quick Start

Get Started in Minutes

terminal

 # Get started with Docker (recommended)
 $ docker build -t scarlet-dev .
 $ docker run -it --rm -v $(pwd):/workspaces/Scarlet scarlet-dev \
  bash -c "cargo make run-riscv64"

 # Once Scarlet boots:
 Login successful for user: root
 Scarlet Shell (Interactive Mode)
 # hello
 Hello, world!
 PID  = 5
 PPID = 3 

Status

Current Progress

Architecture Support

RISC-V 64-bit Primary
AArch64 (ARM64) In Development

ABI Support

Scarlet Native Complete
Linux (RISC-V 64-bit / AArch64) Partial
xv6 (RISC-V 64-bit) Experimental