Arkadiusz Jedrzejewski focused on advancing the persistency feature for the qorix-group/score repository, delivering a new backend API implemented in Rust to support version 0.3.0. His work centered on improving the reliability and integration of the persistency stack with downstream services, emphasizing robust API development and backend engineering. He expanded the testing capabilities to ensure the new feature’s stability and prepared comprehensive release documentation to support future maintenance. Although no major bugs were addressed during this period, Arkadiusz’s contributions reflected a depth of technical focus on code quality improvement, backend development, and thorough testing using both Rust and C++.