Send sound to Nest Mini from Homebridge

New attempt

using assistant relay https://greghesp.github.io/assistant-relay/docs/getting-started/installation

step by step no shortcuts

now on home bridge install the plugin 

Homebridge Http Switch Unlimited https://www.npmjs.com/package/homebridge-http-switch-unlimited

and here is the json confing in home bridge

{

    "accessory": "HTTP-SWITCH-UNLIMITED",

    "name": "test",

    "switchType": "stateless",

    "timeout": 1000,

    "onUrl": [

        {

            "url": "http://192.168.0.222:3000/assistant",

            "method": "POST",

            "body": {

                "command": "hello world",

                "user": "asisteme",

                "broadcast": true

            },

            "headers": {

                "Content-Type": "application/json"

            }

        }

    ]

}

note that "asisteme" is the username with OAUTH from google in assistant-relay

IMportant, some safety settings in google make it useless unless you cancel the IPV6 on the sky router

New attempt

Brand new installation of raspbian

Connect to through terminal

Install nodejs 

https://linuxize.com/post/how-to-install-node-js-on-raspberry-pi/

Pip3 is already installed

Copied release into directory and run npm i

Then following instructions here https://assistantrelay.com/docs/getting-started/installation

Install Catt with this command pip install Catt

And it works

I was finding some trouble as i was using a oauth file from another user created.