Over a two-month period, mhxnet.de contributed targeted improvements to facebook/fbthrift and chenrui333/homebrew-core, focusing on build system modernization and dependency management. In fbthrift, they upgraded the CMake minimum version to 3.10, ensuring compatibility with future CMake releases and reducing deprecation warnings, while also enhancing code correctness by adding explicit aborts in unreachable switch cases to address GCC warnings. For homebrew-core, they removed an unnecessary inline patch for Boost::program_options, streamlining dependency management and improving build reliability. Their work demonstrated depth in C++ development, CMake configuration, and package management, resulting in more maintainable and robust codebases.