Digital Sovereignty as a strategic concept encompasses equity and sustainability. We explore affordances in Open Source projects that have been initiated to achieve more Digital Sovereignty. Open Source has the potential to be central for Digital Sovereignty. Our primary data set include online interviews with project teams and literature in the context of Digital Sovereignty from 2013 to 2024. By evaluating the project outputs based on affordance theory, we identify digital and economical offerings. The analysis of the impact of these offerings on the projects forms the basis for formulating measures to improve sustainable actions through Digital Sovereignty. With this work we provide a better understanding of IT-enabled organizational change and the types of affordances that are required in Digital Sovereignty transformations.