Contributed to the openssl/openssl repository by enhancing both build system reliability and API documentation clarity. Addressed a Makefile issue by updating the clean target to remove test-runs artifacts, ensuring reproducible builds and reducing CI flakiness through improved build system management and Makefile scripting. Additionally, clarified the semantics of additional authenticated data (AAD) processing in the EVP_EncryptInit documentation, helping developers understand output length determination when using AAD. This work involved close collaboration with maintainers and reviewers, adherence to documentation standards, and applied expertise in cryptography and Pod documentation, ultimately supporting more predictable builds and clearer API usage for the project.