Worked on the ibexa/recipes-dev repository to enhance security for shareable links by addressing both configuration and authentication challenges. Focused on backend development and configuration management, the work involved fixing the Shareable Link Authenticator namespace across multiple security configuration files to ensure compatibility with version 4.6. Additionally, introduced a new firewall configuration using yaml to require authentication for public shareable links, supporting external participants across commerce, experience, and headless modules. These updates improved security alignment, reduced the risk of misconfiguration, and prepared the codebase for future 5.x features, demonstrating attention to cross-product maintainability and secure configuration practices.