Lightning talk exploring a custom hybrid approach to upgrading a complex Drupal 8 site to Drupal 9 that combines traditional composer upgrade, fresh site installation, and selective data migration. Details handling 20 entity types, 70 bundles, 150 fields, and 1,600 configuration files with structural changes to 50% of entities. Demonstrates using install profiles, bash scripting, and SQL manipulation for controlled data migration with comprehensive rebuild processes.