Ory Hydra is an open-source OAuth2 and OpenID Connect server that simplifies implementing industry-standard identity protocols, allowing developers to focus on their application's core functionality. It acts as a security checkpoint, verifying identities and granting permissions. CockroachDB ensures that these checkpoints are distributed across multiple locations, preventing bottlenecks and downtime. By setting up Ory Hydra with CockroachDB, users can create a fully functional OAuth 2.0 / OpenID Connect authentication system that handles user logins, authorization flows, and token management in a secure and scalable manner. This setup is highly available, secure, and resilient, making it suitable for both small applications and enterprise-level systems.