Worked on the Nitrokey/nitrokey-documentation repository to enhance the accuracy of user-facing documentation, specifically focusing on the Nitrokey 3 PIV guidance. Addressed a critical documentation bug by updating the factory default PUK value from '123456' to '12345678', ensuring that the instructions now reflect the actual product behavior and reducing potential user confusion during onboarding. Employed skills in documentation and reStructuredText (RST) to deliver clear, traceable changes, referencing explicit commits to support auditability and change management. The work prioritized alignment between technical documentation and product functionality, contributing to improved user experience and more reliable information for Nitrokey users.