Digital sovereignty in action: how the DGFiP, supported by LINAGORA, is building its open-source cloud

DGFiP is today one of the most concrete examples of digital sovereignty in France.

For more than fifteen years we have been supporting them on issues related to open‑source software. LINAGORA acts in particular as the holder of the Support Open‑Source Software contracts and of Lot 1 (generic) of the Open‑Source Software Expertise contract.

Recently the spotlight has been turned on Nubo, the DGFiP’s internal cloud. An infrastructure built on a 100 % open‑source stack (Linux, PostgreSQL, Tomcat), hosted in its own data‑centres, with already 22 % of the 800 applications migrated, and new projects deployed by default in this environment.

This is not so much an announcement as a coherent trajectory, increasingly visible.  Most importantly, a key reminder: behind these sovereign infrastructures there are, first and foremost, solid technological choices, sustained over time, especially around open‑source. At LINAGORA, it is precisely on these building blocks that we have been working side‑by‑side for years.

Today, these architectures operate at large scale in one of France’s most critical administrations.

For an IT department, the question may no longer truly be “Is it possible?”

Rather: What still prevents organisations from committing to this path?

Digital sovereignty is not a label. It is an infrastructure decision, and it often starts simpler than we think.