Amazing work and welcome to the community! We’ll definitely make sure to get this into the awesome-redwood repo so others can see it and check it out. If you’re interested in contributing to the redwoodjs.com repo as well I think this would be a great addition to the official docs.
We had a post about using JWT’s with Github back in May and we’ve had a ton of different work done with 3rd party Auth providers but this looks like the most general solution I’ve seen yet.