Refolk

Top Rust Operating systems repositories on GitHub

Kernels, microkernels, and OS research projects. Filtered to projects whose primary language is Rust.

Ranked by stars across 75 Rust repositories tagged operating-system. Refreshed daily.

  1. 1
    RightNow-AI/openfang18,204 · ⑂ 2,290

    Open-source Agent Operating System

    • agent-framework
    • ai-agents
    • llm
    • mcp
    • open-source
    • openclaw
  2. 2
    redox-os/redox16,583 · ⑂ 1,025

    Mirror of https://gitlab.redox-os.org/redox-os/redox

    • redox
    • rust
    • microkernel
    • operating-system
    • bsd
    • freebsd
  3. 3

    :books: Learn to write an embedded OS in Rust :crab:

    • rust
    • bare-metal
    • raspberry-pi-3
    • rpi3
    • embedded-rust
    • armv8
  4. 4
    bottlerocket-os/bottlerocket9,672 · ⑂ 587

    An operating system designed for hosting containers

    • operating-system
    • containers
    • linux
    • rust
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  6. 5
    tock/tock6,444 · ⑂ 860

    A secure embedded operating system for microcontrollers

    • embedded
    • operating-system
    • rust
    • cortex-m
    • kernel
    • tock
  7. 6
    nuta/kerla3,467 · ⑂ 96

    A new operating system kernel with Linux binary compatibility written in Rust.

    • operating-system-kernel
    • rust
    • operating-system
  8. 7
    maestro-os/maestro3,336 · ⑂ 111

    Lightweight, Linux-compatible kernel, written in Rust to leverage the safety of the typesystem. Aiming to remove as much legacy as possible while supporting most usecases

    • kernel
    • rust
    • unix
    • lightweight
    • operating-system
    • posix
  9. 8
    theseus-os/Theseus3,199 · ⑂ 187

    Theseus is a modern OS written from scratch in Rust that explores 𝐢𝐧𝐭𝐫𝐚𝐥𝐢𝐧𝐠𝐮𝐚𝐥 𝐝𝐞𝐬𝐢𝐠𝐧: closing the semantic gap between compiler and hardware by maximally leveraging the power of language safety and affine types. Theseus aims to shift OS responsibilities like resource management into the compiler.

    • operating-system
    • rust
    • kernel
    • research
    • theseus
    • intralingual
  10. 9
    nebulet/nebulet2,357 · ⑂ 72

    A proof-of-concept microkernel that implements a WebAssembly "usermode" that runs in Ring 0.

    • osdev
    • webassembly
    • rust
    • operating-system
    • microkernel
    • nebulet
  11. 10
    rcore-os/rCore-Tutorial-v32,111 · ⑂ 560

    Let's write an OS which can run on RISC-V in Rust from scratch!

    • rust
    • risc-v
    • rcore
    • operating-system
    • k210
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  13. 11
    hermit-os/hermit-rs1,966 · ⑂ 117

    Hermit for Rust.

    • virtualization
    • osdev
    • operating-system
    • cloud-computing
    • high-performance-computing
    • rust-lang
  14. 12
    hermit-os/kernel1,495 · ⑂ 132

    A Rust-based, lightweight unikernel.

    • rust-lang
    • cloud-computing
    • kernel
    • virtualization
    • high-performance-computing
    • unikernels
  15. 13
    copper-project/copper-rs1,493 · ⑂ 106

    Copper is an operating system for robots - build, run, and replay your entire robot deterministically.

    • robotics
    • ros
    • rust
    • operating-system
    • physical-ai
  16. 14
    Andy-Python-Programmer/aero1,254 · ⑂ 54

    Aero is a new modern, experimental, UNIX-like operating system following the monolithic kernel design. Supporting modern PC features such as long mode, 5-level paging, and SMP (multicore), to name a few.

    • operating-system
    • rust
    • aero
    • unix
    • uefi
    • hacktoberfest
  17. 15
    ariel-os/ariel-os1,226 · ⑂ 112

    Ariel OS is a library operating system for secure, memory-safe, low-power Internet of Things, written in Rust

    • iot
    • low-power
    • operating-system
    • rtos
    • rust
    • embedded
  18. 16
    DragonOS-Community/DragonOS1,205 · ⑂ 192

    DragonOS is an operating system developed from scratch using Rust, with Linux compatibility. It is designed for **Serverless** scenarios.

    • os
    • operating-system
    • rust
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  20. 17
    vinc/moros1,098 · ⑂ 44

    MOROS: Obscure Rust Operating System 🦉

    • rust
    • os
    • toy-os
    • hobby-os
    • osdev
    • x86-64
  21. 18
    arceos-org/arceos780 · ⑂ 435

    An experimental modular OS written in Rust.

    • modular
    • operating-system
    • unikernel
    • os-components
    • rust
    • osdev
  22. 19
    kazetaos/kazeta696 · ⑂ 26

    Retro 90s style gaming operating system

    • console
    • gaming
    • linux
    • operating-system

Find Rust engineers shipping Operating systems

The list above ranks the most-starred public Rust repositories tagged with the Operating systems topic, drawn from the public GitHub graph. Across 75 matching repositories, the contributors are a tight cluster of engineers with both Rust chops and real Operating systems experience.

That overlap is rare. Most Rust engineers haven’t shipped Operating systems, and most Operating systems maintainers don’t write Rust. The people on this list’s contributor graph are the ones who do both.

Refolk turns this list into a search. Ask for Rust Operating systems maintainers hiring” or Rust engineers shipping Operating systems in 2025” and Refolk returns a ranked shortlist with the commits, profiles, and projects behind each name.

How this list is built

Refolk searched GitHub for public Rust repositories tagged with the Operating systems topic, ranked them by stargazer count, and kept those with at least 25 stars. The list refreshes once a day.

Last refreshed: Sun, 20 Sep 2026 05:44:08 GMT

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How are these repositories ranked?

By stars, with forks and recent activity as tiebreakers, read from the public GitHub API. The methodology section above has the details.

How fresh is the data?

The ranking re-renders at least daily. Last refreshed: Sun, 20 Sep 2026 05:44:08 GMT.

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Yes. Stars rank the projects; I can rank the engineers - maintainers, top contributors, and the people they work with. You start with 500 free credits, no card required.

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