From bottlenecks to self-service: How Duolingo built Workflow-as-a-service with Temporal Nexus

Zhihao Wang (Staff Software Engineer, Duolingo) shares how Duolingo's Cloud Operations team built a self-service platform on Temporal Nexus that evolved from a team tool into a company-wide workflow-as-a-service platform. The talk covers cross-namespace orchestration, human-in-the-loop controls, Slack integration, and the governance patterns that let teams expose and consume workflows at scale.