Rails 8 Tutorial Part 2 Covers Built-in Authentication Generator for Study Flow

The second part of a Rails 8 tutorial series builds user accounts for a sample app called Study Flow. It explains that Rails 8 includes its own authentication generator, which writes readable Ruby code into the app instead of relying on a gem such as Devise. The guide walks through how login works, with a session record stored in the database and an identifier kept in a cookie so the browser can be recognized across requests. It also covers the generated models, the use of password digests rather than stored passwords, and the rate limiting and access controls applied to the controllers. A signup page, which the generator does not create, is added manually at the end.