In Sep 2025, focused on enhancing UX stability and state management for list views in foam3. Key feature delivered: Persistent Row Collapse State for TitledArrayView. This feature introduces a collapseState map and a rowKey() utility to generate stable, unique keys for rows, enabling persistence of expanded/collapsed states across redraws and user interactions. This reduces UI confusion and saves user time when navigating large lists. No major bug fixes were reported this period; effort centered on feature development to improve reliability of UI state across redraws. Business impact: improved user experience and efficiency when working with titled views; reduces need to re-expand/collapse after interactions. Technical impact: introduces deterministic row identity and state persistence, improving maintainability and reducing edge-case bugs related to UI state across redraws. Technologies/skills demonstrated: JavaScript/TypeScript state management, map-based persistence, unique key generation, and cautious, incremental code changes.