The heart of KUBO

KUBO Offline Server

Wikipedia, Khan Academy, CK-12 and science simulations, reachable from any phone or laptop in the school with no internet at all: one small server makes it happen, and carries the school platform and the backups too.

What it costs, roughly: a complete seat from about €184 with a reused screen, the whole-school server about €319, a full 25-computer lab about €9,000. The software is free and open source. Plan it for your school →

One server behind the lab and the platform

Every KUBO lab runs on one server. It serves the offline library and tools to every seat, and backs up critical data to the cloud whenever there is a connection, even a weak one. It starts on a Raspberry Pi and scales up to whatever hardware a school's needs call for.

Offline first

The whole library without internet

The offline lessons, reference libraries and classroom tools run from the server to every seat, so a class never waits on the internet.

Safe data

Critical data backed up automatically

When a connection is available, the server syncs critical data to the cloud, so the things that matter stay safe and recoverable.

Scalable

Starts small and grows with your school

Begin with a single Raspberry Pi. As needs grow, move the server to bigger hardware, and nothing else in the lab has to change.

What it serves, offline

A library most schools with internet would envy, fully offline and reachable from any device with WiFi: the lab's desktops, a laptop, a tablet, a phone. Straight in the browser, nothing to install. Your school picks what fills its server:

  • Wikipediathe full encyclopedia
  • Khan Academycourses & exercises
  • PhETscience simulations
  • CK-12textbooks
  • African Storybookchildren's books
  • TEDTED-Ed talks & lessons
  • Project Gutenbergclassic books
  • World mapbuilt on OpenStreetMap

Served by the two leading open-source projects for offline learning:

Kolibri

Kolibri, Learning Equality's offline learning platform, integrated with our school platform's Learn module.

Kiwix

Kiwix, which puts entire reference libraries offline, from Wikipedia to Project Gutenberg.

The world map builds on OpenStreetMap. Logos and content belong to their respective projects.

And it runs the school platform

The server comes with the KUBO school platform pre-configured, just a click to activate. It is the software that runs the whole school: grades, term reports, timetables, attendance and health records, with a login for everyone, from the head teacher to each student.

Explore the school platform →
The KUBO school platform dashboard

How it holds up without internet

The server is designed around one assumption: the connection is the exception, not the rule. Everything a school needs on a normal day runs locally, and the rare moments of connectivity are used well.

A normal day needs no connection at all

Lessons, the library and the school platform run on the school's own network, reachable from any device with WiFi and a browser. Nobody at school notices whether the internet is up.

A weak connection is enough to stay safe

When a connection appears, the server syncs grades, reports and records to the cloud, then carries on alone. The library itself needs no backup, because it can always be filled again.

It starts on a Raspberry Pi and grows from there

The first server draws just a few watts, small enough to run from solar. When the school's needs grow, it moves to stronger hardware and the rest of the lab keeps working unchanged.

One guarded line home

Every lab joins our private zero-trust overlay network: nothing stands open to the internet, each machine sees only what it needs, and we can reach the devices we care for. Over that line travel updates, the record backups and a heartbeat with the server's health, and when something misbehaves we debug it remotely. The machines stay yours: open source, full access for your own team, and running entirely without us stays possible.