Fancy making use of a Raspberry Pi as a smart speaker? Well, two projects have demonstrated the steps for getting the popular single-board computer working with Google Assistant and Amazon Alexa. The realised projects support wake words and may be a cheaper option than purchasing an Echo Dot or a Nest Home Mini if you have a Raspberry Pi lying about.
https://www.notebookcheck.net/Raspberry-Pi-Transform-the-popular-single-board-computer-into-a-smart-speaker-with-Google-Assistant-or-Amazon-Alexa-integration.480872.0.html