Pulumi has launched as an open-source cloud development platform that introduces a new programming model using real programming languages to modernize how software is designed and built for the cloud. It aims to bridge the gap between current software creation practices using configuration YAML and templating languages and the needs of today's cloud developers by integrating traditional programming concepts such as IDEs, abstraction, and encapsulation into cloud program creation. Pulumi supports immutable infrastructure across major cloud services like AWS, Microsoft Azure, Google Cloud Platform, and Kubernetes in various cloud settings. With an open ecosystem of packages, Pulumi encourages best practice sharing and reduces redundancy within teams and the broader community, marking over a year of development with an enthusiastic team ready to see its impact.