Sava Savov developed JSON-based configurability improvements for connectors in the Ontotext-AD/graphdb-workbench repository, focusing on enhancing the connector creation UI. Using AngularJS, HTML, and JavaScript, Sava implemented support for editing and persisting JsonString field types, allowing users to configure JSON-based options such as nativeSettings directly within the interface. This work streamlined the connector setup process by reducing the need for manual JSON edits and established a foundation for broader JSON-based configuration across connectors. The feature addressed usability and maintainability, aligning with the product roadmap and providing a basis for future extensibility in front end development workflows.