Is it just me or could the sales pitch use some work? What is this? Why use it? Elevator pitch, that is. Calling it “authentication for the web” is way too generic.
It's actually generic "authentication for the web" which is why it comes off as generic. They started off with being authentication for NextJS and it was definitely helpful for a quick auth implementation. Now it's being opened up to any web framework which is kind of a cool evolution.
It sounds like it's similar to Passport.js, which let's you add support for 3rd-party auth systems by just supplying API credentials instead of implementing an OAuth etc flow yourself.
It still leaves a lot of authn/authz work up to you, but it simplifies putting a "log in with Google" button on your site.
