Josh contributed to the phnx-im/infra repository by developing and integrating a comprehensive macOS Development Setup Guide into the project’s README. This addition introduced a dedicated 'Development' section outlining prerequisites, configuration steps, and run instructions, all written in Markdown and supported by Bash scripting where appropriate. The work focused on improving developer onboarding for macOS users, reducing ambiguity and streamlining the setup process for new contributors. By aligning with documentation standards and leveraging Git for traceability, Josh established a reusable reference for future onboarding efforts. The depth of documentation provided a scalable foundation for supporting broader operating system environments.