At the beginning of the year 2022, the flagship project CampusOS, which is funded by the Federal Ministry for Economic Affairs and Climate Protection (cBMWK) is being funded with 30 million euros over the next three years. The aim of the project is to build an ecosystem for open 5G campus networks through open radio technologies (Open RAN) and interoperable components. This should enable manufacturer independence and competition. 22 partners from research and industry are investigating different operator models for open campus networks, developing reference architectures, evaluating solutions in reference test fields and at the same time testing selected scenarios as prototypes in an industrial environment.