Demonstrates how ambitious site builders use ECA and BPMN visual modeling to unlock advanced Drupal functionality without writing code. Shows the evolution from Rules to ECA, the BPMN.iO modeler interface, and real-world use cases including large intranet workflows, booking systems, and digital signage platforms. Highlights ECA's architecture as a lean processor with pluggable events, conditions, and actions serving 17,000+ production installations.