During the month, contributed a targeted performance optimization to the TanStack/store repository by refactoring the Alien Signals implementation. This work focused on enhancing tree-shaking capabilities and reducing unnecessary imports, resulting in cleaner bundles and improved modularization for downstream applications. Leveraging TypeScript and front end development skills, the approach emphasized maintainability and developer productivity while supporting reactive programming patterns. No critical bugs were addressed, as the primary goal was to optimize feature performance. The changes led to faster build times, lighter deployments, and a more scalable codebase, ultimately improving user experience through reduced load times and lower runtime costs.