I followed the Alexa on Raspberry Pi tutorial and it is really cool. I have a non-critical issue and a question. The issue is that when I complete the authentication initiated by the Alexa Java client using Login With Amazon, the CompanionService Node.js app receives a request at http://localhost:3000/authresponse, and that results in an error "Not Found" with a 404 code. But the Java client still receives the token and works, both with and without the wake word agent.
The question - Can Alexa be started on the Pi in a headless mode without requiring the manual step of logging into Login With Amazon?