Mark Drummond contributed to the hmcts/civil-wa-task-configuration repository by implementing a DMN-based rule for handling Welsh language requests, ensuring the system accurately processes claimant interactions when language preferences are set to BOTH or WELSH. He used Java and XML to define and verify the rule logic, resolving integration conflicts to support stable deployment and reduce manual intervention in language-specific workflows. In addition, Mark improved documentation accuracy in the hmcts/civil-citizen-ui repository by correcting branding inconsistencies in Markdown files. His work focused on targeted backend enhancements and documentation quality, demonstrating depth in DMN modeling and attention to detail in project maintenance.