Radioslav contributed to the vacp2p/nim-libp2p repository by refactoring the pub/sub test runner, removing unused flags and simplifying test execution to streamline CI workflows and reduce configuration complexity. Using Nim and CI/CD practices, this work improved test reliability and accelerated developer feedback, enhancing maintainability and onboarding for the team. In the vacp2p/roadmap repository, Radioslav implemented comprehensive unit and integration tests for the Libp2p module, formalizing QA processes and increasing regression safety. Leveraging skills in testing, documentation, and QA, Radioslav’s focused engineering addressed reliability and maintainability, delivering targeted improvements to test infrastructure and release readiness over a two-month period.