# AddAuth documentation

> 0.2.0.dev: unreleased development documentation. Install add_auth from RubyGems through your Rails app’s Gemfile. Version 0.2.0.dev is not yet published, so installation will be available after that release.

- [AddAuth documentation](https://addauthgem.com/): Explore AddAuth development features for Rails 8: password, email-link and passkey sign-in, sessions, setup, configuration and troubleshooting.
- [Introduction](https://addauthgem.com/introduction/): Understand how AddAuth extends Rails authentication, which development features it adds, and what your app still owns.
- [Features & roadmap](https://addauthgem.com/features/): Explore AddAuth’s sign-in methods, session controls, customization and planned features for Rails authentication.
- [Compare auth gems](https://addauthgem.com/comparison/): Compare AddAuth, Devise, Rodauth, and Sorcery: sign-in methods, account flows, sessions, extensions, and what your Rails app owns.
- [Quickstart](https://addauthgem.com/quickstart/): Install add_auth from RubyGems in a Rails 8 app, configure sign-in, and start using password and email-link authentication.
- [Deployment checklist](https://addauthgem.com/production/): Prepare HTTPS, a shared rate-limit cache, durable jobs and mail delivery before evaluating an AddAuth deployment.
- [Email-link sign-in](https://addauthgem.com/email-links/): Enable email-link sign-in, understand confirmation and resend behavior, and configure optional same-browser binding.
- [Sessions & sign-out](https://addauthgem.com/sessions/): Adopt hardened Rails sessions, set expiry, revoke another browser and plan the transition from existing signed-in sessions.
- [Captcha](https://addauthgem.com/captcha/): Configure optional Cloudflare Turnstile or Google reCAPTCHA, required provider keys, hostname checks and outage behavior.
- [Configuration](https://addauthgem.com/configuration/): Look up implemented AddAuth settings, defaults, units, host responsibilities and session or email configuration examples.
- [Styling & views](https://addauthgem.com/customization/): Style AddAuth with scoped CSS, map semantic classes or eject view templates while preserving authentication behavior.
- [Generators & commands](https://addauthgem.com/generators/): Choose an AddAuth generator, understand what it changes, and run doctor or the pending email delivery sweep.
- [Troubleshooting](https://addauthgem.com/troubleshooting/): Diagnose missing sign-in emails, unavailable sign-in, expired links, generator errors and sessions that end sooner than expected.
- [Security & support](https://addauthgem.com/security/): Report an AddAuth vulnerability privately, get help with a reproducible issue and understand host application responsibilities.
- [Release status](https://addauthgem.com/release-status/): Check AddAuth’s RubyGems availability, documented version, compatibility and release notes before installing or upgrading.

Full text: https://addauthgem.com/llms-full.txt