Managing secrets and application configurations is essential for secure software development, and Pulumi Environments Secrets and Configuration (ESC) provides a comprehensive solution to address common challenges such as hardcoded credentials and configuration inconsistencies. The introduction of the Pulumi ESC SDK in TypeScript/JavaScript, Go, and Python simplifies the integration of ESC into applications, offering a developer-friendly interface for managing sensitive data and configurations across the entire application lifecycle. ESC provides a managed solution for generating cloud provider credentials, aggregating secrets from multiple sources, and managing them through "environments" that can be used in various development workflows. The SDK allows for efficient lifecycle management of environments, secure access to secrets, and consistent configuration across multiple environments, enhancing security by eliminating long-term credential storage. It integrates smoothly with Pulumi Infrastructure as Code (IaC) and offers features like type safety, compile-time checks, and IDE integration to reduce errors and accelerate development. Real-world scenarios demonstrate its utility in securely managing database credentials, serverless deployments, and microservices configurations, supporting dynamic and secure application workflows.