Over a two-month period, Msciepanienka contributed to the curl/curl repository by enhancing AWS integration within the test suite and improving build reliability. In May 2025, they expanded AWS-related testing coverage by adding new functionality to multiple test files, using C and focusing on robust software development and testing practices. Later, in January 2026, they addressed a build configuration issue by disabling AWS dependencies, ensuring that the curl library could be built successfully across diverse environments without requiring AWS support. Their work demonstrated a targeted approach to both feature development and maintenance, with depth in C programming and build configuration.