The Gcast plugin makes it possible to establish a link between your Google Assistant and Jeedom. It will be possible to use your Google Home / Google Mini to do TTS or interact with Jeedom via interactions
After downloading the plugin you must activate it and enter the IP of your Google Assistant. This plugin allows to speak a google cast and to control its volume. It also acts as a bridge for interactions and Google Home.
The volume control works but not the TTS
You must check your internal network configuration (the plugin uses it for TTS generation), in particular no https on the internal networks.