Douglas Rice developed the HMC Lips toggle capability for the hmcts/civil-ccd-definition repository, introducing the respondent1Represented field during the CREATE_SDO process to enable dynamic control of the HMC Lips feature. He implemented a rollback mechanism to revert the toggle if necessary, ensuring system stability and reducing risk. His approach emphasized clear commit traceability, with explicit documentation of both the feature addition and rollback. Working primarily with Java and JavaScript, Douglas applied backend and full stack development skills to align the solution with product requirements, improving configurability for HMC Lips while maintaining code quality throughout the month-long project.