During November 2025, John Burgy focused on stabilizing data handling in the bokeh/bokeh repository by addressing a core issue with DataCube initialization. He ensured that the DataCube respected the target property from the initial render, which improved grouping and toggling behavior for data exploration dashboards. Working primarily with Python and TypeScript, John updated tests to cover target-aware initialization and prevent regressions, while also performing targeted linting and code quality improvements. He incorporated pull request feedback and applied small refactors, resulting in more maintainable code and enhanced dashboard reliability for users working with complex data visualization scenarios.