A tour, in eight families, of the technologies our teams work with every day — from infrastructure to front-end, all drawn from the open-source ecosystem.
1. Web languages
The foundation of our developments: proven languages, backed by active communities.
- PHP — the historic language of the web, at the heart of our CMS and business applications.
- Python — application development, APIs and data processing.
- JavaScript — interactivity in the browser as well as on the server.
- HTML5 & CSS3 — semantic, accessible and responsive interfaces.
2. Frameworks & application development
Back-end and front-end frameworks to build high-performing web and mobile applications.
- Django — our Python framework of choice for business platforms, with Django REST Framework for APIs.
- React — rich, composable web interfaces.
- Vue.js — a progressive, lightweight front-end.
- Node.js — server-side JavaScript services and tooling.
- Bootstrap — a UI library for consistent, responsive rendering.
- Flutter — cross-platform mobile applications for iOS and Android.
3. CMS & e-commerce
Editorial websites and online stores: we deploy and customise the market’s leading solutions.
- SPIP — the free CMS we have used and extended since our beginnings, including for this website.
- WordPress — the world’s most widely used CMS, for tailor-made editorial sites.
- PrestaShop — a complete, extensible e-commerce platform.
4. Business management
Open-source solutions to manage operations, customer relationships and IT assets.
- Odoo — a modular ERP: sales management, accounting, inventory.
- Dolibarr — a lightweight ERP/CRM for small businesses and non-profits.
- GLPI & FusionInventory — IT asset management, automated inventory and helpdesk.
5. Databases & search
From relational to document stores, all the way to instant search.
- PostgreSQL — the relational engine behind our critical business platforms.
- MariaDB & MySQL — the web ecosystem’s reference relational databases.
- MongoDB — a NoSQL document database for flexible data.
- Typesense — a typo-tolerant, instant search engine.
6. Systems & infrastructure
Our platforms rest on free and open foundations.
- Debian GNU/Linux — the reference distribution for our servers, stable and predictable.
- Nginx — a high-performance web server and reverse proxy.
- Proxmox VE — virtualisation and high availability for our infrastructures.
- Docker — application containerisation for reproducible deployments.
7. Network & security
Open-source firewalls and routing to protect our clients’ infrastructures.
- pfSense — the reference open-source firewall and router.
- OPNsense — filtering, VPN and network monitoring.
8. Tooling & industrialisation
Our software production chain is industrialised from end to end.
- Git & GitLab — code versioning, review and continuous integration (CI/CD).
- npm — JavaScript dependency management.
- Ansible — automated deployment and server configuration.
- Matomo — privacy-friendly audience analytics, hosted on our own servers.
