Top Operating systems repositories on GitHub
Kernels, microkernels, and OS research projects.
Ranked by stars across 476 repositories tagged operating-system. Refreshed daily.
- 1HeyPuter/puter★ 43,565 · ⑂ 4,066
🌐 The Internet Computer! Free, Open-Source, and Self-Hostable.
- desktop
- desktop-environment
- osjs
- web-desktop
- webtop
- cloud-os
- 2huihut/interview★ 38,218 · ⑂ 8,070
📚 C/C++ 技术面试基础知识总结，包括语言、程序库、数据结构、算法、系统、网络、链接装载库等知识及面试经验、招聘、内推等信息。This repository is a summary of the basic knowledge of recruiting job seekers and beginners in the direction of C/C++ technology, including language, program library, data structure, algorithm, system, network, link loading library, interview experience, recruitment, recommendation, etc.
- interview
- interview-questions
- interview-practice
- interview-preparation
- interviews
- c
- 3SerenityOS/serenity★ 33,847 · ⑂ 3,544
The Serenity Operating System 🐞
- operating-system
- c-plus-plus
- os
- unix
- desktop-environment
- kernel
- 4anoma/anoma★ 33,605 · ⑂ 4,112
Reference implementation of Anoma
- cryptography
- blockchain
- protocol
- consensus
- distributed-systems
- p2p
- Live search
Find the people behind these repos
Stars rank the projects. I can rank the engineers - maintainers, top contributors, and the people they work with. Fire one of these to see how it works.
500 free credits on sign-up, no card needed.
- 5Awesome-HarmonyOS/HarmonyOS★ 19,967 · ⑂ 3,261
A curated list of awesome things related to HarmonyOS. 华为鸿蒙操作系统。
- huawei
- harmonyos
- os
- operating-system
- iot
- iot-platform
- 6RightNow-AI/openfang★ 18,205 · ⑂ 2,290
Open-source Agent Operating System
- agent-framework
- ai-agents
- llm
- mcp
- open-source
- openclaw
- 7reactos/reactos★ 18,101 · ⑂ 2,218
A free Windows-compatible Operating System
- operating-system
- c
- kernel
- os
- osdev
- x86
- 8
- 9redox-os/redox★ 16,583 · ⑂ 1,025
Mirror of https://gitlab.redox-os.org/redox-os/redox
- redox
- rust
- microkernel
- operating-system
- bsd
- freebsd
- 10rust-embedded/rust-raspberrypi-OS-tutorials★ 14,735 · ⑂ 874
:books: Learn to write an embedded OS in Rust :crab:
- rust
- bare-metal
- raspberry-pi-3
- rpi3
- embedded-rust
- armv8
- Live search
Who is hiring in this space?
I read hiring signals across LinkedIn, GitHub, and the open web - so a topic list becomes a warm outreach list. Try one live.
500 free credits on sign-up, no card needed.
- 11s-matyukevich/raspberry-pi-os★ 13,938 · ⑂ 1,340
Learning operating system development using Linux kernel and Raspberry Pi
- raspberry-pi
- linux-kernel
- osdev
- arm
- operating-system
- raspberry-pi-3
- 12tuhdo/os01★ 13,712 · ⑂ 790
Bootstrap yourself to write an OS from scratch. A book for self-learner.
- operating-system
- book
- 13gurugio/lowlevelprogramming-university★ 12,753 · ⑂ 876
How to be low-level programmer
- linux-kernel-hacking
- c-programming
- hardware
- embedded-systems
- programming-language
- low-level-programming
- 14AkashSingh3031/The-Complete-FAANG-Preparation★ 12,213 · ⑂ 2,619
Dive into this repository, a comprehensive resource covering Data Structures, Algorithms, 450 DSA by Love Babbar, Striver DSA sheet, Apna College DSA Sheet, and FAANG Questions! 🚀 That's not all! We've got Technical Subjects like Operating Systems, DBMS, SQL, Computer Networks, and Object-Oriented Programming, all waiting for you.
- interview-questions
- dsa
- dbms
- sql
- aptitude
- algorithms
- 15wolverinn/Waking-Up★ 10,292 · ⑂ 1,821
计算机基础（计算机网络/操作系统/数据库/Git...）面试问题全面总结，包含详细的follow-up question以及答案；全部采用【问题+追问+答案】的形式，即拿即用，直击互联网大厂面试；可用于模拟面试、面试前复习、短期内快速备战面试...
- interview
- computer-science
- computer-network
- operating-system
- database
- git
- 16bottlerocket-os/bottlerocket★ 9,672 · ⑂ 587
An operating system designed for hosting containers
- operating-system
- containers
- linux
- rust
- Live search
Turn any brief into a list like this
I run natural-language searches across GitHub, LinkedIn, and the open web. Describe who you want and I'll build the shortlist.
500 free credits on sign-up, no card needed.
- 17ublue-os/bazzite★ 9,099 · ⑂ 1,102
Bazzite makes gaming and everyday use smoother and simpler across desktop PCs, handhelds, tablets, and home theater PCs.
- desktop
- fedora-linux
- gaming
- htpc
- oci-image
- operating-system
- 18NodeOS/NodeOS★ 7,343 · ⑂ 619
Lightweight operating system using Node.js as userspace
- nodeos
- javascript
- operating-system
- nodejs
- 19ravynsoft/ravynos★ 7,028 · ⑂ 241
An open-source OS project that aims to provide source and binary compatibility with macOS® and a similar user experience.
- freebsd
- macos
- cocoa
- objective-c
- desktop
- osdev
Find engineers shipping Operating systems
The list above ranks the most-starred public repositories tagged with the Operating systems topic, drawn from the public GitHub graph. Across 476 repositories tagged this way, the maintainers and top contributors are a tight cluster of the people actually building Operating systems.
Looking for engineers who’ve worked on Operating systems for real, not just listed it on LinkedIn? The fastest path is the contributor list of these repos. Their commits, issues, and READMEs are public proof of depth.
Refolk turns this list into a search. Ask for “maintainers of top Operating systems repos who are hiring”, “Operating systems engineers in San Francisco”, or “founders shipping Operating systems” and Refolk returns a ranked shortlist with sources.
How this list is built
Last refreshed: Sun, 20 Sep 2026 04:42:12 GMT
Need a list like this for any search?
Refolk runs natural-language searches across GitHub, LinkedIn, and the open web. Try one of these:
- Operating systems maintainers hiringRun
- Operating systems engineers in San FranciscoRun
- Companies shipping Operating systemsRun
500 free credits on sign-up, no card needed.
Browse other topics
- Top RAG repos
- Top Terraform repos
- Top Vue repos
- Top LLM repos
- Top Vector databases repos
- Top Text-to-speech repos
- Top Machine learning repos
- Top Observability repos
See all repository lists.
Operating systems by language
Common questions
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 04:42:12 GMT.
Can I find the maintainers and contributors behind these repos?
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.
Can I use this list for hiring?
That's the point. I read hiring signals across GitHub, LinkedIn, and the open web, so a repo list turns into a shortlist of engineers worth talking to.
Try it on the search you came here for
Stop building boolean strings. Just describe the person.
Type one sentence. I plan the search, read GitHub, public LinkedIn and Crunchbase records, and the open web as it is right now, and hand back a ranked list with the reason next to every name.
01Describe them
One plain sentence. Role, city, stack, stage, whatever matters to you.
02I read the web live
GitHub, public LinkedIn and Crunchbase records, the open web. Not a database that went stale last quarter.
03You read the shortlist
Ranked, with the reasoning under every name. Open a profile, ask a follow-up, narrow it down.
- Staff backend engineers in NYC who shipped Rust in production
- Series A fintechs in SF under 50 people, growing headcount this year
- Maintainers of fast-growing Rust web frameworks on GitHub
- No boolean, no filters, no seat to buy. One box.
- Read at search time, so a profile updated yesterday counts today.
- Every step visible as it runs, every name with its reason.
500 free credits on sign-up. No card, no demo call. See real searches.