I’m afraid it won’t work if you have ssl turned on because the Google devices won’t be able to verify the certificate.
You have to have SSL off in order to have google devices use tts.
NGINX is actually really easy to set up. Install the addon. Then in the addon configuration, you only need to put your domain in. It will initially show:
"domain": null
Change this to :
"domain": "domainname.duckdns.org"
Then simply remove the ssl_certificate and ssl_key lines from your http: section in configuration.yaml
That’s it!
If you have any issues, I’m happy to help!