Worked on the DataDog/lading repository to enhance the configurability and robustness of the observer subsystem by delivering a Custom Observer Configuration feature. This work allowed users to define their own observer configurations and introduced support for optional observers, increasing flexibility for various use cases. The implementation included comprehensive error handling to prevent conflicting observer definitions, ensuring system stability and reducing misconfiguration risks. Updates to the configuration schema improved backward compatibility and usability for end users. The project was developed using Rust and focused on backend development practices, emphasizing maintainability and extensibility for future enhancements within the system’s architecture.