Lyon’s Bold Digital Revolution: 7 Reasons the City’s Break‑Up With Microsoft Will Rock Government IT
On 23 June 2025, Lyon announced Territoire Numérique Ouvert (TNO) and a progressive migration from Microsoft Office to OnlyOffice, Linux, and PostgreSQL across municipal workstations. Territoire Numérique Ouvert is an open-source collaborative suite developed with SITIV and the Lyon Metropole. TNO is hosted in regional datacentres. TNO received a €2 million grant from the National Agency for Territorial Cohesion (ANCT). TNO already serves several thousand agents in nine local authorities. Civil servant training for the switch began in June 2025. The initiative aims to escape American software dependency. Zimbra integration by Axess reduces maintenance costs by at least 50%. Over