Alex Kniazev enhanced the installation documentation for the hiddenSymmetries/simsopt repository, focusing on improving onboarding for new users. He centralized setup instructions by linking MacOS and other system-specific installation steps to dedicated GitHub Wiki pages, making resources more accessible and easier to maintain. Working primarily with reStructuredText (RST) and leveraging documentation best practices, Alex aligned the guidance with the latest setup processes to reduce onboarding friction and potential support requests. While the scope of work was limited to documentation, the changes provided a clearer, more maintainable installation flow, demonstrating attention to user experience and technical accuracy in documentation.