Worked on expanding assembly modeling capabilities in the FreeCAD/FreeCAD-addons repository by integrating Assembly2MuJoCo as a new Git submodule. Focused on configuring the submodule’s source repository and branch to ensure stable and maintainable integration within the FreeCAD ecosystem. This approach streamlined access to advanced MuJoCo-based assemblies for FreeCAD users, reducing manual integration steps and supporting faster adoption of new tooling. The work centered on Git submodule management, leveraging version control best practices to simplify ongoing maintenance. No bug fixes were recorded during this period, with efforts concentrated on delivering this feature and enhancing the extensibility of the FreeCAD-addons catalog.