During December 2025, Arman focused on improving code maintainability within the tanstack/router repository by refactoring the router-core module. He removed redundant JSDoc comments from the defaultParseSearch function, streamlining the documentation and clarifying the core parsing logic. This TypeScript-based enhancement did not introduce user-facing features or bug fixes but addressed internal code clarity, reducing documentation noise and making the codebase more approachable for future contributors. By prioritizing maintainability and readability in front end development, Arman laid the groundwork for faster future iterations and easier onboarding, demonstrating a thoughtful approach to long-term project sustainability and technical debt reduction.