Large organizations rarely manage a single repository, and duplicating build and deployment pipelines across dozens of projects quickly becomes expensive and error-prone. This session explores how to design GitHub Actions for reuse, governance, and long-term maintainability in enterprise environments. Learn when to use composite actions, reusable workflows, and shared templates, along with strategies for versioning, security hardening, and organizational rollout. We’ll examine real-world patterns for standardizing builds, tests, security scans, and deployments across teams while preserving flexibility where it matters. Attendees leave with a blueprint for reducing pipeline sprawl and accelerating delivery at scale.