https://techcrunch.com/2019/05/07/google-launches-new-developer-tools-for-the-google-assistant/

At its I/O conference, Google today announced a slew of new tools for developers who want to build experiences for the company’s Assistant platform. These range from the ability to build games for smart displays like the Google Home Hub and the launch of App Actions for taking users from an Assistant answer to their native apps, to a new Local Home SDK that allows developers to run their smart home code locally on Google Home Speakers and Nest Displays.

This Local Home SDK, may actually be the most important announcement in this list, given that it turns these devices into a real hardware hub for these smart home devices and provides local compute capacity without the round-trip to the cloud. The first set of partners include Philips, Wemo, TP-Link and LIFX, but the SDK will become available to all developers next month.