During a two-month period, Flamecze contributed to the nrwl/nx-console and biomejs/biome repositories, focusing on reliability and developer experience. For nrwl/nx-console, Flamecze enhanced package management utilities by implementing comprehensive unit tests for key functions in the shared npm library, using JavaScript, TypeScript, and Jest. This work improved cross-platform compatibility and enabled earlier regression detection by addressing path normalization for both Windows and Unix-like systems. In biomejs/biome, Flamecze updated documentation to ensure editor integration guides were accurate across multiple languages, streamlining onboarding and reducing misconfiguration risks. The work demonstrated depth in both testing and documentation practices.