During January 2025, Alex Goldfarb developed a C/C++ language extension for the espressif/llvm-project repository, introducing the __nullptr keyword across all C and C++ language modes. This work involved aliasing nullptr to __nullptr, ensuring consistent type compatibility and reducing platform-specific discrepancies in codebases. Alex updated documentation to reflect the new keyword, defined token kind support for proper parsing, and created comprehensive tests to verify behavior and compatibility. The project demonstrated skills in compiler development, language design, and documentation using C and C++. The depth of the implementation improved portability and consistency for developers relying on language tooling.