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Cesium

Cesium is open-source wallet client software for the Duniter cryptocurrency network, delivered as an unhosted Progressive Web Application and as browser-extension, desktop and smartphone clients. It supports wallet management and friend certification, and is built with JavaScript, AngularJS and Ionic.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Cesium — OpenViST project profile in Wallets.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use Cesium when the task is tied to a Duniter wallet or Duniter friend certification and a client is needed across web, browser-extension, desktop or mobile environments.

Who it is for

  • Duniter cryptocurrency users managing wallet accounts
  • Duniter participants using friend certification
  • Developers or operators seeking an AGPL-3.0 client with web, desktop, mobile or self-hosting distribution options

Documented uses

  • Manage a Duniter cryptocurrency wallet
  • Certify friends within the Duniter network
  • Install a Duniter client in a browser, on a desktop or smartphone
  • Deploy the client through the documented YunoHost package
Before you choose

Requirements & limits

The repository documents web, Firefox and Chrome extension, desktop, Android and iOS installation paths, as well as a YunoHost package. Cesium is distributed under the GNU AGPL-3.0 license.

  • Duniter ecosystem alignment is central: the repository describes Cesium as wallet software for Duniter and Ğ1.
  • The client is unhosted and delivered as a Progressive Web Application, with additional browser, desktop and smartphone packaging.
  • The documented technical stack is JavaScript with AngularJS and Ionic.
  • The project is distributed under the GNU AGPL-3.0 license.
  • Installation instructions vary by platform, including release files for desktop and manual or store-based mobile installation.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Install Cesium as a browser extension

Add the Cesium client to Firefox or Chrome.

Before you start

  • Firefox or Chrome
  • The latest Cesium extension release from the project repository

Steps

  1. Download the latest extension release.

  2. Drag and drop the release file into the browser.

  3. Confirm the installation.

  4. Use the new browser button to open Cesium.

Expected outcome

Cesium is installed as a browser extension.

Guide limitations

  • This procedure documents installation only; it does not describe wallet setup or transaction execution.
Documentation 1 ↗
Source-based practical guide

Install Cesium on a desktop computer

Install a desktop release of the Cesium client.

Before you start

  • A desktop operating system supported by one of the documented release formats
  • The latest Cesium release

Steps

  1. Download the latest release.

  2. On Ubuntu, double-click the .deb file; on Debian, run the documented dpkg installation command.

  3. On Windows, double-click the .exe file.

  4. On macOS, unzip the .zip file and move Cesium to the Applications folder.

  5. For other systems, unpack the web ZIP into an empty folder and open index.html in a browser.

Expected outcome

Cesium is installed or opened from the downloaded desktop release.

Guide limitations

  • The repository gives separate instructions by operating system but does not document wallet configuration or use after installation.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
Active
Sources checked
3 October 2026
Original website title
duniter/cesium · Official homepage title · retained in its source language
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