Arkyn OS 3.0.0, a free public download since 1 November 2026
Arkyn OS. A privacy-hardened Linux desktop by DatSov.
Arkyn OS is a privacy-hardened Linux desktop built and maintained by DatSov on Ubuntu 26.04.1 LTS with the COSMIC desktop; encrypted by default, no telemetry, no snaps. Version 3.0.0 has been a free public download since 1 November 2026.
People who build things, and want their machine's defaults on their side.
A private, hardened Linux desktop for people who build things. The protections are on from the first boot, and nothing third-party is preinstalled except the LibreWolf browser.
Full-disk encryption is on by default.
The installer ticks encryption for you. Untick it and the installer stops, in red, to explain what an unencrypted laptop exposes before anything is written.
No telemetry and no snaps.
Nothing third-party is preinstalled except the LibreWolf browser.
Arkyn Guard shows which protections are on right now and where each reading came from, and lets you choose a threat profile.
Arkyn Link pairs your phone with your computer over your own local network. Arkyn Link for Android is built for GrapheneOS; Arkyn Link is built on KDE Connect.
It boots on Canonical's signed kernel, so Secure Boot stays on; UEFI with Secure Boot is recommended.
What it protects against, in plain English.
Loss, theft and espionage are the three things a desktop has to answer for. Here is what the shipped image does for each, and the one thing it cannot do.
A LAPTOP LOST OR STOLEN
Full-disk encryption is on by default. The disk is unlocked by one passphrase at boot; without it, whoever now holds the machine holds a disk they cannot read. Documents, browser sessions, saved passwords and keys stay yours.
WHO SEES HOW YOU USE IT
No telemetry means the operating system does not report your usage back to DatSov. Nothing third-party is preinstalled except the LibreWolf browser; any other third-party app is on the machine because you installed it.
WHAT IS PROTECTING YOU
Arkyn Guard reads each protection live, disk encryption, firewall, encrypted DNS, VPN, updates, AppArmor, Secure Boot, and shows where each reading came from. If it cannot read something it says so rather than reporting it on. You choose a threat profile; Everyday is the default.
THE HONEST LIMIT
Encryption protects data at rest. It does nothing for a machine left unlocked, and the passphrase cannot be recovered if you lose it; the installer says so. Lock the screen when you walk away, and keep the passphrase somewhere other than the lid.
Not yet on sale.
The Arkyn Workstation has no published specification or price yet. If you would like to hear when it does, write to the Arkyn inbox and we will reply when there is something to show.
Running Arkyn OS across a team?
The download is free and needs nobody's permission. If you are weighing it for an organisation and want to talk it through, start with a conversation.
Arkyn OS is not affiliated with or endorsed by Canonical Ltd. or System76. Ubuntu is a trademark of Canonical Ltd.; COSMIC is developed by System76. "Sov" is Arkyn's name for its COSMIC desktop. The Sovrant T and "Sov" belong to s0vrant and are used with permission. Arkyn Link is built on KDE Connect, a KDE project.