Achieving sustainable development includes mainstreaming biodiversity, which underpins the provision of food, fibre and water. It also mitigates and provides resilience to climate change. In this context, the EU-funded BIONEXT will develop knowledge, tools and guidance for mainstreaming biodiversity into policymaking. It will analyse the implications of transformative change in the biodiversity nexus for EU environmental policy actions. The project will provide concrete options on how to initiate, accelerate and upscale biodiversity-relevant transformative change in society. BIONEXT will also develop an app that will allow users to explore transformational building blocks, for formulating policies and implementing pathways for the biodiversity nexus.