Today, we are launching Greengrass Software Catalog, a collection of AWS IoT Greengrass software components developed by the Greengrass community. Instead of developing device applications from scratch, you can now choose from a list of pre-built Greengrass components on GitHub to kick-start your IoT edge application. You can easily install, use, and modify these components to accelerate your IoT project. As part of this launch, we are also offering Greengrass Development Kit Command Line Interface (CLI) that you can use to configure and build the catalog components in your local development environment.
Source:: Amazon AWS