Worked on the vercel/turborepo repository to improve the reliability and clarity of developer documentation. Focused on aligning user-facing Markdown documentation with the actual Rust source code, specifically for passthrough environment variables. Addressed a documentation bug by updating the link to reference the correct definition of BUILTIN_PASS_THROUGH_ENV in lib.rs, ensuring users could accurately locate and understand built-in variables. This targeted fix reduced confusion and potential misconfigurations for developers, streamlining onboarding and support. Demonstrated technical writing and documentation skills by verifying code references and maintaining consistency between documentation and implementation, ultimately enhancing the overall developer experience for the project.