Contributed to openclaw/openclaw and nesquena/hermes-webui by delivering targeted reliability and feature enhancements across backend and frontend systems. Addressed a Windows-specific file system issue in openclaw/openclaw by refining static file identity checks, ensuring cross-platform compatibility and preventing silent asset-serving failures using Node.js and JavaScript. In nesquena/hermes-webui, implemented a feature to display messaging history from external platforms such as Discord and Telegram, while also resolving a bug that hid historical messages due to empty gateway sessions. Leveraged TypeScript, configuration management, and internationalization to improve session management, test coverage, and overall maintainability of customer-facing web interfaces.