Worked on the oven-sh/bun repository to address cross-platform consistency in terminal color output, focusing on the NO_COLOR environment variable. Implemented a fix in Zig that ensures colored output on Windows now respects NO_COLOR, disabling ANSI color codes when the variable is set and aligning behavior with other operating systems. This change improved CLI development by reducing user confusion and ensuring predictable output across platforms. The solution involved robust environment variable handling and careful code path management to maintain clean, maintainable logic for color handling. The work demonstrated attention to cross-platform compatibility and technical quality, addressing a nuanced user experience issue.