This summer, I have the opportunity to work with CO-HATY by Metalab, a project that focuses on renovating vacant buildings in Ukraine to provide housing for internally displaced individuals. As a researcher, my primary focus is to investigate sustainable and cost-effective approaches for transporting, reusing, and upcycling donated materials from demolished buildings in Switzerland to be used in Ukraine. In particular, our team is currently exploring innovative ways to repurpose and retrofit doors in order to adapt them to the new environment. We also aim to enhance their functionality, such as incorporating storage solutions, to better serve the needs of the residents.