I recently had to learn OIDC which is the standard for auth that most people really mean when they say OAuth now, I think. I learned by implementing (using Key

I recently had to learn OIDC which is the standard for auth that most people really mean when they say OAuth now, I think. I learned by implementing (using Keycloak) and most importantly by reading the OIDC specs. It may seem intimidating, but the real core of it is not that large. It's a topic I'd be interested in writing more about, and I'm happy to start here if you would find it useful.