Adam from Red Hat spoke about how the company uses CentOS Stream for development on RHEL and how others can use it to participate and build their own stuff. He explained the process from Fedora to RHEL and how CentOS Stream fits in. He also talked about the contributions that can be made, such as bug fixes, stable updates, and backported features, while emphasizing the importance of considering ABI stability for customer support. Users can preview test features and build on top of CentOS Stream, as well as create their own special interest groups.