Szymon contributed to backend development and API design for the nobl9/sloctl and nobl9/nobl9-go repositories, focusing on release management and validation logic. In nobl9/sloctl, he established stable release practices by implementing a version bump to 0.9.1, supporting reproducible builds and improved artifact traceability without introducing functional changes. For nobl9/nobl9-go, Szymon extended resource naming limits and introduced a StringName validation rule, enabling longer, DNS-compliant identifiers while maintaining backward compatibility. His work, primarily in Go and Makefile, emphasized robust validation and release hygiene, addressing operational needs for traceable releases and safer metadata handling in production environments.