This lecture covers the process of selecting the Blue Brain Nexus Project, loading metadata from various sources such as the Allen Cell types database and the MouseLight project, transforming data to fit the Minimal Neuroscience Dataset schema (MINDS), integrating and versioning them within the Blue Brain Nexus Project, and accessing the dataset. Students will also learn how to transform and integrate metadata from scientific repositories into the Blue Brain Nexus Knowledge Graph, and how to search and download metadata programmatically.