Ngoto Genome enhanced cross-platform compatibility for the ruby/ruby and ruby/json repositories by addressing Solaris 10 portability issues. They implemented a non-native strnlen function in C to support JSON parsing on systems lacking native support, and resolved macro compatibility by substituting RBIMPL_ATTR_MAYBE_UNUSED for the MAYBE_UNUSED macro. Their work focused on system programming and build systems, ensuring that both the Ruby core and JSON libraries build and run reliably on Solaris environments. By fixing two bugs and adding a targeted feature, Ngoto improved CI reliability and reduced platform-specific failures, demonstrating depth in C programming and cross-platform development for Ruby extensions.