Ottoman 2.0 is a newly released Object Document Mapper (ODM) library designed to facilitate the integration of Couchbase with Node.js by translating JSON documents into native JavaScript objects. It enhances backend development by serving as a conduit between client applications and the Couchbase data store, offering features such as schema definition, data modeling, automatic timestamps, and immutability to ensure data integrity and quality. The library simplifies complex data management tasks, such as modeling, validating, and ensuring constraints, which are often challenging with NoSQL databases due to their fluid data structures. Ottoman's capabilities are further extended through the use of hooks, plugins, custom schema types, and validators, which improve maintainability and reduce the need for repetitive code. Additionally, its query building and indexing features optimize data retrieval and manipulation, making it a powerful tool for developers familiar with JavaScript or TypeScript to build robust and agile applications without having to create intricate data layers from scratch.