When building scalable applications, developers often struggle with choosing the right database technology to enhance functionality or performance. Polyglot persistence promises to allow developers to take advantage of different persistence layers to improve their application's capabilities. MongoDB and Neo4j are two popular databases that can be used together to achieve this goal. A document database like MongoDB is suitable for storing structured data, while a graph database like Neo4j excels at generating recommendations based on user interactions. However, integrating these two databases can add complexity to the application. To address this challenge, a new community project called Neo4j Doc Manager has been developed, which enables real-time synchronization of documents from MongoDB to Neo4j, allowing developers to build polyglot applications with minimal additional complexity.