During March 2026, San Bz focused on enhancing the swiftlang/swift-evolution repository by improving documentation related to Swift existential types and testing resources. Leveraging skills in Swift, Markdown, and testing, San corrected a typo in the existential types section to align with SE-0352 and updated a broken link to RSpec matchers, ensuring that contributors have access to accurate and current testing information. Although no new features were developed, these targeted documentation fixes addressed onboarding challenges and reduced confusion for developers. The work demonstrated attention to detail and contributed to the maintainability and clarity of the project’s technical resources.