Worked on the nix-security-tracker repository to deliver on-demand suggestion caching and visibility improvements, focusing on enhancing reliability and performance. Implemented caching strategies in Django using Python, introducing safeguards to prevent crashes from missing cached values and refining the user interface to display only cached suggestions. Developed targeted UI filtering and on-demand caching for detail views, reducing crash risk and improving responsiveness. Added comprehensive end-to-end tests with Playwright to validate both cached and uncached scenarios, ensuring robust behavior and preventing regressions. Addressed CI gaps and reinforced test coverage, contributing to smoother deployments and higher code quality in web development workflows.