We recently designed and developed two new conference/summit websites for the United Nations on Drupal 10. The first being the 4th International Conference on Financing for Development and the second for World Social Summit under the title Second World Summit for Social Development. Both projects are quite similar and faced the same challenges, which included developing inside existing Drupal 10 installations and tight deadlines to reach to ensure the websites we were before their respective summits/conferences.
The websites feature many advanced searchable and filterable databases used show dynamic content. A particular page that shows this best is our solution for the event programme, this page can be filtered be each day, category, venue, and has a keyword search. We've also setup and designed databases to store documents, outcomes and statements for each event.