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OMOS (codename Sirius) is an operating system with one goal: to make the computers you already own behave like a single, private system. Capability-based security governs everything, faults stay contained, and the same system runs on Intel/AMD, ARM and RISC-V hardware. It’s private by default — no account, no telemetry, no ads.
OMOS is in early development. What runs today is the foundation: it boots on all three CPU architectures, runs programs in a protected user space, and enforces capability-based security from the first boot. The layer that pools many machines into one is on the roadmap, not finished — these docs are clear about what exists now versus what’s ahead.

Quickstart

Download an image for your machine and boot OMOS in a virtual machine or on real hardware.

Architecture

How OMOS is put together — a small trusted core with drivers and services around it.

Security

Capability-based security: every program starts with nothing and gets only what you grant.

Platform support

What runs on x86_64, ARM64 and RISC-V today.

Roadmap

Where OMOS is going — the distributed system, storage, graphics and more.

Privacy

No account, no telemetry, no ads — what that means in practice.

Licensing

Free for personal, education and non-profit use; free for smaller commercial use.

FAQ

Short answers to common questions.

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Who it’s for right now

Today OMOS is for the curious — people who want to boot an early, independent operating system and watch it grow. You can run it in a virtual machine in a minute, or write an image to a disk and boot a spare machine with it. It’s not yet a daily driver, and it doesn’t pretend to be.

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Made by burakov

OMOS is built and published by burakov. It’s proprietary software: the compiled system is distributed to end users under the OMOS EULA, and it’s free for personal, education, non-profit and smaller commercial use.