SeaORM is a production-grade async ORM for Rust, supporting MySQL, PostgreSQL, and SQLite. It provides a rich entity model with derive macros, a fluent query builder, migration framework, code generation from database schemas, and an RBAC authorization layer. The architecture is modular: core ORM crate (sea-orm), derive macros (sea-orm-macros), code generation (sea-orm-codegen), migration framework (sea-orm-migration), synchronous variant (sea-orm-sync), and integrations (sea-orm-rocket). Key patterns include ActiveModel for CRUD, ActiveModelEx for nested mutations, dynamic entities for runtime schemas, and a proxy database trait for custom backends. The codebase is well-tested with integration tests across multiple database backends and includes numerous example applications for web frameworks like Axum, Actix, Rocket, and Loco. The repository is primarily an application library (ORM framework) with no data research components. It is actively maintained with recent releases and a large community. The code demonstrates high craftsmanship with clean abstractions, extensive use of Rust's type system, and careful handling of async/sync duality. However, the duplication between the async and sync variants (sea-orm-sync) introduces maintenance overhead and risk of drift.