Worked on the matter-labs/zksync-docs repository to deliver a targeted documentation update addressing Windows 10 passkey onboarding for ZKsync SSO. The update clarified a technical limitation where RS256-only support in Windows Hello prevents ES256 verifiers from enabling passkey creation, which can confuse users and increase support requests. By providing clear Markdown-based guidance and a practical workaround—using a mobile device or password manager for passkey creation—the documentation now aligns with the product roadmap and reduces onboarding friction. The work demonstrated disciplined git collaboration, attention to security implications, and a focus on cross-platform usability, resulting in more effective user support resources.