As the first centralised repository for psychological instruments in Serbian, one of the main goals of the project was to prevent duplication of efforts in translating/adapting instruments and to provide a space for local researchers to promote their original instruments. A further challenge was to facilitate easy access to essential materials for researchers and students. While the Open Science Framework - the free platform hosting REPOPSI - is a valuable hosting platform, this also posed challenges in terms of Reusability (e.g. metadata cannot refer to a machine-understandable reuse licence) and Interoperability (e.g. metadata values cannot be expressed using a controlled vocabulary). REPOSI also had the need to promote its data and services to a wider, global research community.