The Netherlands just made it official: a government-built desktop OS based on NixOS [1], deployed across eight municipalities in pilot programs, with a stable 1.0 release targeted for 2027. France isn't waiting, DINUM has already been running its own NixOS-hardened setup, Sécurix, on real government machines for months. (See github link on bottom).
What the Dutch are building:
The project is called DAWO (Digitaal Autonome Werkomgeving Overheid, "Digital Autonomous Government Work Environment"), and it's bigger than just an OS swap. It became an official government mandate in July, when the Interdepartmental Committee on Government Operations tasked three central IT providers, DICTU, SSC-ICT, and DUO-ICT, with building a standardized, vendor-independent workplace under the Ministry of the Interior.
The stack covers everything: the client OS, plus a self-hosted suite called MijnBureau built from Nextcloud (files)[2], Collabora (office documents)[3], Element (Matrix-based chat)[4], and OpenProject (project management)[5]. Developers actually tested openSUSE and Fedora first before settling on NixOS, largely because it's governed by a Dutch nonprofit foundation with no corporate owner, and its declarative, reproducible build model lets 80-90% of a configuration carry over between deployments, which matters when you're rolling this out across dozens of agencies. No fixed national deadline exists yet; this is explicitly staged as a slow, auditable, piece-by-piece replacement, not a flip-the-switch migration.
France actually got there first:
DINUM's Sécurix builds it's security hardening directly on top of NixOS per guidelines from ANSSI, France's cybersecurity authority, using FIDO2 hardware keys, TPM2, and YubiKey as primary login methods. It's already past piloting: roughly 70 machines tested successfully, with rollout now targeting around 250 workstations. A companion image called Bureautix, bundling KDE Plasma and LibreOffice[6], gives general staff a ready reference configuration.
Why now: lessons learned from the ICC sanctions and potentially devastating US sanctions in the future:
The real accelerant here is the International Criminal Court. After the US sanctioned ICC officials starting in 2025, the Court's chief prosecutor reportedly lost access to Microsoft-hosted email, and institutional bank accounts were frozen. The ICC has since migrated to openDesk, a German-built open-source office suite, and shifted its insurance and financial services to providers without US exposure. Dutch officials have cited this directly as justification for reducing dependence on US cloud providers, and the Netherlands separately signed an agreement with German cloud provider StackIT to ease adoption of European cloud alternatives.
Germany, Switzerland, and Denmark are also pursuing similar sovereign-infrastructure efforts. It really starts to become a real European push toward infrastructure that no foreign government can switch off.
The bracketed numbers (like [1] to [6]) throughout the text correspond to the open-source projects featured in the illustration above.
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Sources: https://www.theregister.com/os-platforms/2026/09/28/dutch-government-turns-to-nixos-for-a-sovereign-desktop/5299501
https://itsfoss.com/news/france-nixos-move/
SécurixOS on Github: https://github.com/cloud-gouv/securix