** Serverless patterns reference architectures provide guidelines for developing efficient serverless applications by leveraging industry best practices and utilizing knowledge from other teams. These architectures are designed to optimize resource consumption, handle event streaming and processing, trigger-based processing, and more. By using a distributed document-relational database like Fauna, developers can further optimize their architectures and reduce the total cost of ownership for their organization. Fauna offers features such as ACID compliance, consistency, and scalability, making it an invaluable tool for building serverless projects.