Developed onboarding documentation for the RightFax internal tool within the 18F/handbook repository, focusing on streamlining user adoption for GSA staff. The work involved creating detailed Markdown guides that explain how to send and receive faxes, manage inbound numbers, and utilize outbound faxing via email. By clarifying internal workflows and marking RightFax as an official tool, the documentation reduced setup time and minimized support queries. The approach emphasized clear, accessible instructions and thorough integration with existing handbook resources. This contribution leveraged skills in technical writing and documentation, ensuring that users could efficiently navigate and implement the new faxing service.