Open source software serves as a crucial digital infrastructure for global economies and societies, yet its maintenance is often underfunded compared to physical infrastructure. A study commissioned by GitHub’s developer policy team highlights the disparity between the value of open source software, estimated to contribute $8.8 trillion globally and €65-95 billion annually to the EU economy, and the lack of financial support for its upkeep. The study suggests that the European Union could address this funding gap by creating the EU Sovereign Tech Fund (EU-STF), inspired by the German Sovereign Tech Agency, which has invested over €23 million in open source projects. The proposed fund aims to pool resources from industry, governments, and the EU, with a minimum contribution of €350 million from the EU budget, to finance maintenance, security, and improvement of open source technologies. It emphasizes low bureaucracy, political independence, and strategic alignment with EU goals to ensure transparency and community involvement. As the EU prepares its 2028-2035 budget, GitHub is advocating for the EU-STF to secure open source software infrastructure, with support from partners like Mercedes-Benz.