Application development and delivery (AD&D) teams that build connected products or connected business operations turn to cloud-based internet of things (IoT) platforms to accelerate their efforts. But it's not always practical, economic, or even lawful to move all IoT data to core cloud infrastructure. Amazon Web Services (AWS) has just released Greengrass, a significant expansion of its IoT solution portfolio that extends compute, storage, and connectivity from the cloud to the edge. Greengrass simplifies the programming model for developers building complex distributed systems with microservice architectures.