The Grails® framework is a robust web application framework that is Groovy-based and designed for the JVM, built upon the Spring Boot foundation. It emphasizes convention-over-configuration, offers sensible defaults, and presents opinionated APIs, making it particularly accessible for Java developers to grasp. By leveraging the efficient features of Spring Boot, such as its dependency injection capabilities, the Grails framework enhances productivity and streamlines development. It also ensures smooth integration and interaction with Java, existing Java EE containers, and the JVM itself. Apache Groovy, the language powering Grails, is crafted to boost developer efficiency, providing both optional typing and dynamic capabilities while supporting static typing and compilation as well. Furthermore, the Grails framework incorporates GORM, a powerful data access toolkit that simplifies the interaction with various data sources, offering an extensive array of APIs for both relational and non-relational databases. GORM supports multiple implementations, including popular databases like Hibernate (SQL), MongoDB, Cassandra, and Neo4j, making it a versatile choice for developers working with diverse data storage solutions. Overall, the combination of these features positions the Grails framework as an essential tool for modern web development on the JVM.