The Linux desktop for people who build things.

AtlasOS is Fedora and KDE Plasma, tuned and trimmed. Your tools are already installed, updates wait until you're ready, and if one ever goes wrong, it rolls itself back.

Download the ISO Or switch from Fedora Atomic

Fedora 44 · KDE Plasma 6 · Free and open source

The AtlasOS desktop: a menu bar along the top, a floating dock at the bottom, and the Dolphin file manager open over a sakura wallpaper. — The menu bar on top, the dock at the bottom, Dolphin in AtlasOS Light.

Open a terminal and start.

No afternoon of setup on a new machine. What you'd install first is already there, and the system itself stays out of your way.

Terminal: Ghostty on Ctrl+Alt+T, and “Open Ghostty Here” in Dolphin.
Containers: Podman with a docker command and compose. Toolbox and Distrobox for mutable environments.
Runtimes: mise for Node, Python, Go and the rest.
Command line: git, gh, just, jq, ripgrep, fd, btop, gdb, strace and perf.
Editing: Kate by default, with file watch limits raised for big projects.
Everything else: atlas, a menu for Homebrew, Docker tools on Podman and JetBrains Toolbox. Where software goes.

ghostty · ~/project

❯ gh repo clone you/project && cd project❯ mise use node@22  # Node, Python, Go and friends, per project❯ docker compose up -d  # Podman underneath, the commands you know❯ just test❯ toolbox enter  # a mutable Fedora when you need dnf❯ atlas  # Homebrew, JetBrains Toolbox, the update channel❯

All of it there on first boot, nothing to add.

Updates that wait for you.

Nothing restarts in the middle of a build. Nothing half-installs. And a bad update isn't your evening.

Atlas Updater in the dark theme, showing AtlasOS is up to date, with the current, ready and previous versions listed.

Downloads while you work
Atlas Updater sits in the tray and fetches the next version in the background. The whole system is one tested, signed image, updated in one piece.
Restarts when you say
Restart now or pick a time. See what's new before you do, and update your Flatpak apps from the same window.
Goes back in one click
Don't like an update? Go Back returns you to the previous version, which is always kept.
Rolls itself back
If a new version fails its startup checks, AtlasOS boots the last good one on its own, and won't download that version again.

Two channels: Stable, weekly, and Testing, daily, for the brave. Updates install only if they carry the AtlasOS signature.

Half the memory, before you open anything.

AtlasOS keeps what's good about Fedora and Plasma and drops what most people never use, so your editor, your containers and your browser get the memory instead.

The desktop is ready about 8 seconds after the kernel starts. How it got there, change by change.

Memory in use at idle

Fedora Kinoite 44, stock2,075 MiB

AtlasOSabout 990 MiB

An 8 GB virtual machine, two minutes after login.

Looks finished on the first boot.

Plasma's own Breeze and KWin, set up properly, so nothing extra runs in the background to make it look this way.

The first-run setup's Appearance page, choosing between Light and Dark. — First-run setup: Light or Dark, both from the logo's violets.

The first-run setup's App Launcher page in Dark, choosing between Modern and Classic, over the night sakura wallpaper. — Then your launcher: Modern, over the dock, or Classic, a compact list.

A menu bar on top, a floating dock below, both see-through and blurred
Rounded windows, soft shadows and acrylic-style menus
Two themes, AtlasOS Light and Dark, and the wallpaper turns to night with Dark
Bibata cursors and Dracula icons
IBM Plex Sans for the interface, JetBrains Mono for code
A matching login and lock screen, and its own boot splash

Less, on purpose.

No pile of apps you'll never open, and nothing reporting home.

Left out

Akonadi
The Baloo file indexer
KDE Connect
Telemetry
Apps you would never open

In their place

Brave Origin as the browser
Flathub, set up, for everything else
Crash reports off by default. Turn them on and you read each one in full before it goes. Privacy

Get AtlasOS

One ISO per graphics setup. It boots a live session with the installer already open, and installs the same signed image that updates itself afterwards.

AtlasOS

For Intel and AMD graphics, and older NVIDIA cards on the open nouveau driver.

Download ISO3.5 GB

Version 44.20261003, 3 October 2026

SHA-256

aede6396bb6d6b2befacf4b2f96b6c83e16c7dd1efc439070f30642c98b05a05

atlasos-44.20261003.iso.sha256

AtlasOS for NVIDIA

For GeForce GTX 16 and RTX 20 series or newer, with NVIDIA's own driver (open kernel modules).

With Secure Boot on, the installer gives you a one-time password, and you confirm the AtlasOS key with it on the first restart. Once. More about this

The first ISO is on its way. It's built with each weekly stable release; until then, see switching from Fedora.

Downloads are shared out fairly: a few links per visitor an hour, two downloads at a time each, and a speed cap per download so the server stays quick for everyone. If every slot is busy, try again in a few minutes.

Install it

1
Download the ISO for your graphics card.
2
Check it. In the folder you saved it to, with the .sha256 file beside it:sha256sum -c atlasos-44.20261003.iso.sha256
3
Write it to a USB stick of 8 GB or more, with Fedora Media Writer or any tool that writes ISOs as they are.
4
Boot from the stick and follow the installer. Your first login opens the setup: language, keyboard, Light or Dark, your launcher and your account.

What it needs

Processor: 64-bit Intel or AMD, 2 cores; Better: 4 cores or more
Memory: 4 GB; Better: 8 GB or more
Storage: 30 GB; Better: 64 GB or more, on an SSD
Firmware: UEFI; Better: UEFI
Internet: To install and for updates

Minimum, then recommended. AtlasOS is tuned for and tested on 8 GB.

Already on Fedora Atomic?

Switch a Fedora Kinoite 44 install (or another Fedora Atomic desktop) over in place and restart. Your files in /home stay as they are. With NVIDIA's driver, use atlasos-nvidia instead.

$ sudo bootc switch ghcr.io/eternalcoder454/atlasos:stable