Worked on the ziglang/zig repository, focusing on backend development and documentation improvements using Zig. Enhanced the standard library’s API documentation by clarifying the semantics of the ArrayHashMap eql() function, specifically detailing the role of the usize parameter as the key’s index, which improved onboarding and API discoverability. Addressed a serialization bug affecting unions with void fields, updating the serializer to ensure correct formatting and representation of void fields in output. Validated these changes against expected formats to prevent downstream errors. Demonstrated attention to detail in both data serialization and documentation, contributing to more reliable and maintainable Zig codebases.