Developed and integrated the ReklamUp Adapter within the prebid/prebid-server repository, enabling support for multiple media types and advanced user synchronization methods. This work expanded demand-source coverage and enhanced monetization options by allowing ReklamUp campaigns to reach a broader set of advertisers. The technical approach involved designing adapter architecture, implementing Go-based service integration patterns, and ensuring robust API integration and data synchronization. The process included thorough code review, release engineering, and end-to-end validation to ensure operational reliability. No major bugs were reported during this period, reflecting a focus on release readiness and platform stability throughout the feature delivery.