You can have a look at creating custom actions for google home (https://developers.google.com/... )

Most likely you can get it to send something to NodeRed (with nodeJS). this way you can avoid a lot of actual coding but it will still be some finicky work. I did not watch it but this seems to be about how to get it going.

Node red has an optional OSC Node https://www.npmjs.com/package/...