Explore the world of Policy-as-Code (PaC) in this informative conference talk by Peter O'Neill from Styra. Gain a comprehensive understanding of PaC and its significance for organizations. Discover how Open Policy Agent (OPA) secures heterogeneous Cloud Native stacks and learn architecture patterns for deploying OPA close to services without compromising performance. Examine the process of centralizing management for multiple OPA deployments. Delve into writing policies using Rego, the purpose-built policy language that works seamlessly with OPA to implement Policy-as-Code following industry best practices. Master the art of crafting readable Rego policies, overcoming the learning curve and understanding key idioms and stylistic suggestions to clearly convey policy intentions.