Worked on the oven-sh/bun repository to clarify documentation around Windows FFI handle encoding, focusing on preventing intermittent failures related to pointer representation. Addressed a recurring issue by specifying that Windows API handles, such as GDI handles like HDC and HBITMAP, should be represented as u64 rather than pointers when interfacing through Bun’s FFI. This update, delivered in Markdown, improves reliability for Windows builds and supports safer cross-language interoperability. Leveraged skills in FFI, Windows API, and technical documentation to reduce operational risk for downstream components and enhance onboarding guidance for contributors working with Windows-specific FFI integrations in Bun.