Googiri is a type of middleware broker for Google's Voice Search; queries can be handled by Siri, Google, or your own webserver. You choose which handler handles the request by specifying it during the query. For example if you say "Siri, what time is it?" to the Google voice search app, the request will be handled by Siri and "Jarvis, turn on my thermostat" will be handled by your own webserver.
The webserver can also respond with JSON to show alert views and trigger activator actions on the device, useful for home automation feedback.
For more information and an example of a basic webserver, check out Googiri on Github
If you're using Googiri for home automation or other awesome things, I'd love to know!
Configure options from Settings.app