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For a small computer at home or in the office

LosOS

A box for your files that looks after itself.

LosOS turns an old office mini-PC, or any small 64-bit PC, into your own cloud. You install it once from a USB stick and then use it from a web browser. It restarts every night and installs its own updates.

Free software under the AGPL. Runs on 64-bit Intel and AMD computers.

Losos is Slovak for salmon. The logo is a live coho salmon, photographed underwater.
The admin pages of a box: the app tiles for LosOS Cloud and LosOS Git, the storage card and a board of widgets.The admin pages of a box: the app tiles for LosOS Cloud and LosOS Git, the storage card and a board of widgets.
The admin pages, where you set up and look after the box.

What you get

Three steps to a running box

  1. Install it

    Write the installer to a USB stick and boot the machine from it. It asks one question, wipes the disks and installs in about half an hour.

    Install
  2. Open it in a browser

    The box's screen shows its address. Open it on any computer on the same network and a three-step wizard sets your password.

    The first run
  3. Use it

    Put your files in and connect your phone and your computer. From then on the box needs no screen and no keyboard.

    The admin pages

From one box to a company

Every box starts on its own, on a home network. Later it can get a public address through an edge server, with no port opened at home. It can also lend its spare disk and CPU to other boxes, only in the hours you choose. A company can run several boxes behind its own edge. Each of these is a change of settings, not a reinstall.

Three setup types side by side: a box on its own, a box with the LosOS edge, and a company with its own edge.1. A box on its ownHome networkLaptop or phoneLosOS boxcloud · Git · admin pagesWorks with nothing else running.Reachable on the home network only.No mesh, no market.2. A box with the LosOS edgeInternetLosOS edgeofficial: signed by LosOSHome networkLosOS boxopens the tunnel outwardstunnelyou, from anywhereCloud and Git from anywhere.The mesh with other owners' boxes.The market, once it opens.3. A company with its own edgeOffice networkOffice edgefound on the LAN, not officialboxboxboxone pool of the boxes' spare roomThe mesh stays inside the company.Remote access through the company's edge.No market: only the LosOS edge trades.

Coming soon

What you need

  • A machine with a 64-bit Intel or AMD processor (x86_64) and UEFI or BIOS firmware.
  • At least 4 GiB of memory and one disk of 40 GiB or more.
  • Ideally a TPM 2.0 chip, which most office mini-PCs have. Without one the box still installs and unlocks with a key file.
  • For the install only: a USB stick of 2 GiB, a wired network with internet access, a screen and a keyboard.

LosOS runs on x86_64 only. It does not install on ARM machines, and in particular not on Apple Silicon (M-series) Macs.

You can try it in a virtual machine first. QEMU, virt-manager and VirtualBox all work.

Get the installer

Each release carries the installer ISO and its checksum. The handbook's Install page shows how to write it to a USB stick.