Sloth OS Website & guides ↗

Fedora Atomic · KDE Plasma

A familiar
desktop, with a
Sloth OS face.

A Linux desktop for everyday use and gaming, designed to feel at home from the first boot. Sloth OS pairs KDE Plasma with its own silver sloth identity and a Windows-style layout.

Sloth OS 1.0.2 soon Getting started

Sloth OS 1.0.2 is coming soon. Please wait for the updated ISO before downloading.

The Sloth OS desktop: a silver sloth logo on a graphite wallpaper, with a taskbar showing the start button, Files, Firefox, Steam and Discover.
The real Sloth OS desktop, after the Welcome wizard installed Firefox and Steam
01

KDE PlasmaWindows-style layout, in 50 languages

02

Atomic updatesSigned images, a previous version kept for rollback

03

Windows programsDouble-click an .exe, no Steam needed

THE PRINCIPLE

If you need the terminal,
that’s my fault.

I’m building Sloth OS on my own. Everyday tasks should be available from the desktop, without asking people to learn command-line tools. If the terminal is required, I still have work to do.

The Sloth OS look

Matte silver.
Charcoal dark.

The default desktop uses the Sloth Silver Dark colour scheme: graphite surfaces, soft silver text and highlights, and restrained blue links. The source also includes light, white, black, night, mist and sage variations.

01 / DEFAULT THEME

Sloth Silver Dark

Graphite surfaces, soft silver highlights, and restrained blue links give the default desktop its calm, familiar feel.

See what to expect
02 / DESKTOP
▱

Familiar KDE layout

A Windows-style taskbar and start menu, built as a KDE Plasma look-and-feel package.

What to expect
03 / SYSTEM
↻

Atomic by design

Sloth OS is built on Fedora Atomic. Updates are applied as a system image, with a previous deployment available for rollback.

How updates work

Sloth Center

Every setting,
one window.

Sloth Center sits on the taskbar next to the file manager and the app store. Anything you would otherwise do in a terminal has a button here: updates, drivers, backups, accounts, disks and Windows programs.

01 / UPDATES
↻

Quiet, verified updates

The system updates in the background and only accepts images signed by Sloth OS. A notification tells you when an update is ready, with a “Restart now” button.

02 / FILE HISTORY
◷

Previous versions

Your home folder is snapshotted automatically. Right-click a file or folder and choose “Previous versions” to bring back what you deleted or changed. Backups to an external drive are one click away.

03 / RESET
⟲

Reset this PC

Start over without a USB stick: keep your files and reset only the system settings, or erase everything and create a fresh account. Keep a backup: erasing everything also erases the saved states on the computer.

04 / HARDWARE
⚙

Drivers and devices

NVIDIA machines switch to the NVIDIA image on their own. Game controllers, printers, scanners, firmware updates and phone pairing are managed from the desktop.

05 / YOUR FILES
☁

Cloud and moving in

OneDrive and Google Drive appear as normal folders. Coming from Windows? Sloth OS can copy your Desktop, Documents, Pictures and browser bookmarks from the Windows drive.

06 / SIGN-IN
⚿

PIN, fingerprint, encryption

Sign in with a PIN or a fingerprint, on the login and lock screen alike. The installer can encrypt the whole disk with a password asked at startup.

Sloth Center, Updates page: the system is up to date, with the current version, a Check for updates button, app updates and a button to go back to the previous version.
Updates: the current version, and the previous one a click away
Sloth Center, File backup page: automatic hourly backup switched on, how long to keep saved states, two saved states from today and a Back up now button.
File backup: hourly saved states of your own files
Sloth Center, Reset this PC page with two choices: Keep my files, or Remove everything.
Reset this PC: keep your files, or start completely fresh
Sloth Center, Drivers and hardware page: graphics card status, game controller pairing, and connecting a phone with KDE Connect.
Drivers and hardware: graphics, controllers and your phone

Windows program support

Double-click.
Sloth OS takes it from there.

The project is building an .exe and .msi handler that tries compatible settings per program using Proton via umu-launcher, with system Wine as a fallback. Launchers such as Battle.net, EA app and Ubisoft Connect have their own recipes. When a program has a better Linux version (Discord, Chrome, Teams, Epic and GOG through Heroic), Sloth OS offers that first. Compatibility is experimental; some apps and games will not work.

How it works and where it falls short
01⌕
RecognizeChecks known app and game fixes
✓
02⚙
Try a compatible setupSettings are isolated per program
✓
03↻
Remember what worksReturn to a known working version
✓
The intended flow keeps Wine and Proton details out of the normal launch experience.

Your choice, always

Sharing is
opt in.

If enabled, Sloth OS reports a local hash of the app name, the GPU manufacturer, a compatibility setting, the outcome, and a random machine ID. The app name itself is not sent. Sharing can be changed in Sloth Center.

Read the privacy details

✓ Opt-in sharing

✓ No files or usage times

✓ Downloads are separate from reports

Sloth OS 1.0

Ready to try.
Free to keep.

Download one file, write it to a USB stick, and try Sloth OS without changing anything on your computer. Installing on a whole disk is tested on real computers; installing next to Windows and NVIDIA computers still need more real-world reports, and older BIOS-only PCs are not supported yet.

Download
PROJECT STATUSSloth OS 1.0 is outFollow progress on GitHub ↗

The useful details

Start with a guide.

Source code ↗
↗FIRST STEPSGetting startedThe first start, the Welcome wizard, apps and updates.Read guide → ⌘APPS & GAMESWindows programsHow the compatibility handler is meant to work, and its limits.Read guide → ◎YOUR DATAPrivacyA plain-language breakdown of optional sharing.Read guide → ?QUICK ANSWERSFAQDownloads, compatibility, updates and project status.Read answers →