The German state of Mecklenburg-Vorpommern has abandoned Microsoft's SharePoint in favour of open source collaboration tools, becoming the latest regional administration to assert digital sovereignty. The move, confirmed by state officials, replaces the proprietary document management platform with self-hosted, open source alternatives, reducing dependence on US technology vendors. Meanwhile, Bavaria has announced it is actively evaluating options to migrate away from Microsoft's Office suite and cloud services, following similar steps taken by Schleswig-Holstein and other German states.
These decisions are part of a broader 'public money, public code' movement gaining traction across Europe. Advocates argue that public sector organisations should use software that guarantees transparency, auditability, and long-term control over data. For the UK, where central and local government remains heavily reliant on Microsoft products, the German example raises questions about the cost and security of proprietary lock-in. The UK's National Cyber Security Centre has previously warned about supply chain risks from dominant tech providers.
The implications extend beyond government. UK businesses that supply or partner with the public sector may need to adapt to open source requirements, particularly if the UK follows the EU's lead on digital sovereignty. The EU's AI Act, which mandates transparency for high-risk AI systems, could accelerate demand for open source tools that allow full inspection of algorithms. The UK's Information Commissioner's Office (ICO) is also expected to tighten rules on data processing, making self-hosted open source platforms attractive for compliance.
Dr. Eleanor Finch, a digital policy researcher at the University of Cambridge, said: 'Germany's state-level moves are a bellwether. If the UK government prioritises digital sovereignty in its upcoming procurement reforms, we could see a similar shift. For businesses, this means investing in open source skills and infrastructure now, rather than scrambling later.' She noted that open source adoption can reduce licensing costs but requires upfront investment in IT expertise and migration planning.
For UK consumers, the trend could eventually lead to more privacy-respecting public services, as open source systems typically collect less personal data than commercial alternatives. However, the transition period may cause temporary friction, as citizens and businesses adjust to new interfaces and workflows. The economic impact is mixed: while open source can lower barriers for small tech firms to compete for government contracts, it also threatens the revenue streams of established proprietary vendors.