During November 2024, Mabl4992 enhanced the phetsims/babel repository by developing new circuit simulation visualization features. They focused on front end and JavaScript development to add sensor and chart labeling, which improved data interpretation for users. Their work included implementing support for alternate sensors, broadening compatibility with various data sources. Additionally, Mabl4992 integrated a CCK CODAP wrapper, enabling seamless interoperability with external data analysis tools and enhancing cross-tool analytics. The engineering effort addressed the need for richer, more accessible data visualization in educational simulations. The work demonstrated thoughtful application of JavaScript and front end skills, though it did not involve bug fixes.