The article is part of a series on using Infrastructure as Code (IaC) with Pulumi, focusing on getting started with the tool and exploring advanced use cases. It discusses the initial decision-making process when adopting IaC, whether migrating existing infrastructure or starting anew, and highlights the challenges involved in such transitions. Pulumi offers migration tools to integrate existing infrastructure from other IaC tools like Terraform and CloudFormation. The article outlines various cloud architecture scenarios, such as containerized services, serverless applications, and Kubernetes clusters, demonstrating how Pulumi's templates and examples can simplify the process by providing pre-built setups for different environments. It emphasizes the importance of understanding cloud services and their properties, as Pulumi supports over 100 clouds with extensive resources and configuration options. Additionally, the article introduces Pulumi's concepts of projects and stacks, explaining how they allow for environment management and infrastructure consistency across deployments. Finally, it outlines the deployment process using the Pulumi CLI, showcasing how to create, update, and manage cloud resources with a focus on efficiency and security.