Voice Assistant Integration

I found this framework called Jovo that promises the ability to create one app that runs on both Alexa and Google Assistant. I plan to play around with this over the next few days to see if this is a good fit for my project. For it to work for me, I need to be able to authenticate with the Particle Cloud, which means I need to be able to use OAuth with both the Google Action and the Alexa Skill. I have experience doing authentication with Alexa but I don't know if it's any different for Google Assistant. I found a tutorial for using Jovo to do account linking for Google Actions, but it looks like they're using Auth0, an authentication service. I don't really wanna use that if I can avoid it so I'll see if I can glean from this how to do my own OAuth authentication.