The DBOS Transact open-source library and DBOS Cloud service enable enhanced application resilience and innovative features like database time travel, providing functionalities such as time travel queries, debugging, and auditing. By automatically logging application state changes and interactions with PostgreSQL databases, users can query historical data, facilitating analysis and reporting by viewing data as it was at any past moment. This capability is useful for debugging, as it allows developers to replay and modify past executions locally, enhancing problem-solving. Additionally, the DBOS system's provenance database tracks all data changes, enabling detailed auditing of database interactions, such as who made changes and when. This approach simplifies the management of database applications and offers new tools for understanding and troubleshooting, making it especially beneficial in complex environments like serverless computing and distributed microservices architectures.