From June 2022 until December 2023, the ELIXIR Interoperability Platform worked with seven different ELIXIR Communities to compile and present nine distinct interoperability stories. The diverse set of stories showcased case studies and use cases for enhanced data reuse across the ELIXIR network, and explored the tools, processes, workflows, databases and approaches the different communities took to achieve impact through interoperable data sharing. This report recaps the key messages from those interoperability stories, identifies some common themes and technical solutions, and provides a synopsis of the main lessons learned from these stories.