FIY

The MagPI magazine #57 contains a DIY project for a Google Home in a Box:

https://www.raspberrypi.org/magpi/find-the-magpi-57/

Copies have been shipped to North America, and are available at Barnes & Noble, Micro Center and other stores. These went on sale on the same day as the UK edition, although stores may not have put them out until today.

I Just got mine for $14.99, you get the magazine plus the kit cardboard, speaker, and a voice hat to build (HAT = Hardware Attached on top)

final product:

more details here: https://twitter.com/TheMagP1

bear in mind you need a Raspberry PI 3, familiar with the PI/Linux system, and this is a DIY project: soldering, patience, etc.

EZ-Builder is not available in Linux although you can develop (.NET) your own custom solutions/ideas with EZR mono SDK and gain control of the EZ-B.