Radioslav refactored the pub/sub test runner in the vacp2p/nim-libp2p repository, focusing on streamlining the test workflow by removing unused flags and simplifying test execution. Using Nim and leveraging CI/CD and testing expertise, Radioslav’s changes reduced configuration complexity and improved the reliability of continuous integration runs. This targeted improvement addressed CI flakiness, accelerated feedback cycles for developers, and lowered maintenance overhead for the test infrastructure. The work enhanced the maintainability of the pub/sub test suite, making onboarding easier and supporting overall development velocity. Radioslav’s contribution demonstrated a thoughtful approach to test infrastructure and workflow optimization within the project.