ZETA RAYS OS

Free - minimal - secure - intelligent

A free, minimal operating system: a clean black desktop, advanced security and pentesting tools, and a local AI, ZETA, that understands you and runs the computer for you.

Accent

The idea

Few things, done well.

ZETA RAYS OS is built on the solid foundation of Debian GNU/Linux but doesn't look like it: no duplicates, no endless panels, no programs you'll never use. Just the essentials, refined down to the last detail, and it doesn't spy on you.

Essential

One coherent black desktop, one accent color across the whole interface, a bottom dock with only the apps that matter. Boots in seconds, stays light.

Built for security

Professional pentesting and ethical hacking tools ready to go, a Security center, and a real-time Monitor of network, connections and processes.

A real AI: ZETA

Not a chatbot bolted on top, but an assistant that acts on the computer and runs entirely on it. Your conversations stay on the machine: only questions about current facts are looked up on Wikipedia, and you can turn that off.

ZETA Core · local AI

Talk to your computer. It answers, and acts.

ZETA understands natural language and actually operates the system: apps and windows, files and folders, settings, volume, Wi-Fi, Bluetooth, the dock. After every action it checks the real state of the system, and it only says “done” when it is true. Deleting, installing and shutting down ask for confirmation, showing exactly what will be touched.

ZETA

how much memory am I using?

Memory 1.3 GB used of 8.3 (15%), 7.0 GB free.

create a folder called trips on the desktop, then open it

Created the folder ~/Desktop/trips. Opened the folder ~/Desktop/trips.

close Firefox

Firefox is closed.

is something slowing the computer down?

Using the most CPU: firefox-esr 14% CPU, Hyprland 3% CPU.

Only on your computer

ZETA uses only AI models that run on your computer, via Ollama, also offline: no account, no API key, no online AI service, no tracking. The model is chosen for your computer (8 GB, 16 GB, low-power mini PC). Answers are written and read aloud together, with a natural female voice in Italian and English. ZETA remembers only what you ask, in a file only you can read, and you can see and delete every memory.

Controlled and honest

Actions have risk levels; destructive ones ask first, ZETA never runs arbitrary commands or gets unrestricted administrator access, and every action is logged with passwords hidden. For current facts ZETA uses a verified reference with its date, or looks the question up on Wikipedia if you allow it; when it cannot verify, it says so instead of guessing.

Security & pentest

The tools, ready.

A Security center shows the real state of the system: firewall, disk encryption, updates, secure boot, app isolation, audit log, and gives concrete advice. The firewall is on by default. Tools come from the official Debian repositories.

Preinstalled

NmapMasscantcpdump tsharksqlmapffuf gobusterJohn the Ripperhashcat Sleuth Kitforemostbinwalk ExifToolGDBLynis rkhunterClamAV

Installable in one click

WiresharkNiktoHydra Aircrack-ngbettercapEttercap MedusaReaver

System Monitor

Twelve real-time sections: Overview, Traffic, Map, Network, VPN & proxy, Firewall, Connections, Users, Security, Processes, Services, System. The Map geolocates where your active connections go.

Honest by design

From Processes you can end a stuck program, with confirmation, and with a truthful result: if it doesn't respond, the Monitor says so instead of pretending. System processes are left untouched.

The desktop

Black, coherent, yours.

One accent, everywhere
Blue, red, green, white or a custom color tints borders, bar, launcher, notifications and wallpaper together. Light and dark theme, one key away: SUPER + T, or one click in the Control Center.
Windows & workspaces
Wayland compositor (Hyprland): title bars with close, minimize, maximize; three workspaces; fluid animations that scale back automatically inside virtual machines.
Files & search
File manager with thumbnails for images, PDFs and video. Search that indexes file contents too: text from PDFs, and OCR from images in Italian and English.
Opens everything
140+ file types: PDF, images (JPG, PNG, WEBP, HEIC, SVG…), audio & video (MP4, MOV, AVI, MP3…), archives (ZIP, RAR, 7z, TAR…), text and documents.
Yours to arrange
Change the icon of any desktop shortcut with your own image: right-click it and choose Change Icon. The picture is copied into the system, so it stays even if you move the original. The text editor can have a white or a black page, independent of the desktop.
Instant menus
The menus of the bar, from the ZETA RAYS logo to search, network, sound and power, stay ready in memory: one click and they are open, with fresh data. Another click, or Esc, closes them.
Never stuck
Ctrl + Alt + Esc turns the pointer into a crosshair: click the window that stopped responding and it closes, together with every process it started, first politely and then by force. Ctrl + Shift + Esc closes the active window at once. And when memory is about to run out, the heaviest program is closed before the computer freezes, with a notification that tells you which.
Ctrl + Alt + Delete
One panel for emergencies: task manager, close a frozen program, terminal, restore the desktop, lock, log out, restart, shut down. It works even when an app has stopped responding.
Switch apps
Ctrl + Tab shows the open apps, most recently used first: keep Ctrl down, press Tab, release to switch. Esc cancels, Ctrl + Q quits the chosen app.
ZETA Share
Send files instantly to nearby devices: phones and computers, Android, iPhone, Windows, Mac and Linux. Right-click, Share. The files travel on your local network, never through the internet.
Minimized, in sight
A minimized window shrinks into a live preview next to the dock, with the icon of its app, and grows back with one click. Right-click for Restore and Close.
Folder colors
Right-click a folder and choose Folder Color: red, white, green, blue or purple, like on a Mac. On the desktop the whole folder takes the color, in the file manager a colored dot marks it; Default brings the standard folder back. The color stays after a restart and nothing inside the folder changes.
Displays
Settings, Displays: resolution, refresh rate, scale and orientation for every display, a map to arrange two or more by dragging, mirror or a single display, and the main display. A new setup is checked and asks to be kept; without an answer the previous one comes back after 15 seconds. Windows never end up out of reach: their title bar always stays on screen.
Your dock
Drag the apps in Settings to put them in the order you like; the order stays after a restart. Right-click any icon for Open, Close, Remove from Dock, Options and the settings of the app.
From the browser to the desktop
Drop an image or a file from Firefox or Chromium onto the desktop and it becomes a real file, with its own name, right where you left it; a link becomes a shortcut to the page. An interrupted download leaves nothing broken behind, and nothing is ever overwritten.
Your apps, by default
Choose the browser, mail, file manager, terminal, editor, media player, image and PDF viewer. Every program follows the choice, and so do the keyboard shortcuts.
Wi-Fi without surprises
WPA2, WPA3 and mixed networks, on 2.4 and 5 GHz, hidden ones too. “Wrong password” appears only when the router really refused it: a slow or distant router is told apart, and the right password is never thrown away. You can retype a wrong one right away, and change the password of a saved network or forget it.
Remote access
SSH client and server, scp, sftp, sshfs and netcat are included. On an installed system the SSH server is on and accepts connections from your local network and from the internet, with your password (for the internet your router must forward port 22); in the live session and in the OVA it stays off until you turn it on. One switch in Settings turns it on or off, a second one limits it to your local network; from a terminal: sudo zeta-ssh on and off. Root cannot log in, repeated attempts from the same address are dropped, and every computer gets its own server keys. Your choice is kept after a restart. One active firewall, nftables; ufw is there too, off, with the rules for SSH and sharing already in place if you turn it on.
Mail
Mozilla Thunderbird, one click from the dock, in your language. A dot tells you it is open.
A real terminal
Tabs, splits, bash, zsh and fish. Sessions that survive closing the window, a searchable history of every command with folder and result, and no password ever saved in it.
A desktop that stays up
Force-closing a program while one of its menus was open could bring down the whole desktop, a known bug of Hyprland 0.55. ZETA RAYS ships Hyprland with the official fix, and if the desktop ever crashes anyway it comes back by itself in a few seconds, with your settings.
Text out of pictures
Super + Shift + T and drag over any part of the screen, a web page, a photo, a paused video: the text inside goes straight to the clipboard. Right-click an image or a PDF to do the same with a file. Italian and English, all on your computer.
Next to other systems
Installed alongside another Linux distribution or Windows, the boot menu finds them and lists them, with five seconds to choose. It uses its own EFI folder, so it never overwrites another system's boot files, and Secure Boot keeps working after installation. If a machine ever stops booting, the USB stick carries a repair tool that puts the boot menu back without touching partitions or data. And the installer checks its own work: if the boot loader did not make it to the disk, it stops and says why, instead of reporting success. The boot loader is installed from the USB stick itself, so the installation works with or without a network, also when started from the live session.
Ready to work
Printing (CUPS) with automatic detection of network and USB printers. Removable drives and network shares mounted automatically.

Wallpapers

Included in the system, one click away in Settings, Appearance. Or just ask ZETA: set the wallpaper to red waves.

Desktop screenshots and wallpapers at full size: Screenshots

Download · version 2.5

Choose your machine.

ISO to install on a computer, OVA to import into VirtualBox. Each image includes the local AI model. The system runs on 8 GB of RAM; give a virtual machine at least 8 GB so ZETA can load the model (with 16 GB it stays ready).

amd64

Intel / AMD PC

For most desktops and laptops with an x86-64 processor.

arm64

Apple Silicon / ARM

For Apple Silicon Macs and ARM64 machines (VirtualBox 7.2+).

Verify your download (SHA-256)

After downloading, check that the file arrived intact. The code below must match exactly. On Windows: Get-FileHash .\\file.iso -Algorithm SHA256 · on macOS: shasum -a 256 file.iso · on Linux: sha256sum file.iso. If it doesn't match, the file is incomplete: download it again and don't install it.

amd64.isoe65d22a7c72004f8a7679fd3b230eac4888cc5b7b22cde438eb1b36c45f061d7
amd64.ovae7d946a49352d0cff6fb9a7fc209bd46fe362f02171a8b07227617066c8cd6da
arm64.iso0751b1fcb28776b6a713dbda8dcf14becce84ff508ad7aa5aab29ca20aa97784
arm64.ova77772018fc29f49e36b3a11eaa66b401b5e41dd0bf21d87d25c9a15557f10a4a

The same codes are in SHA256SUMS, ready for sha256sum -c SHA256SUMS.

First login: user zeta · password zeta

Full instructions (installing, dual boot, Wi-Fi, troubleshooting, known limits): README.txt

Source code and bug reports on GitHub

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