Max Tricoire developed and integrated the GreyCat Language Extension within the zed-industries/extensions repository, enabling native GreyCat language support for the project. His work involved creating a new extension and updating repository configuration files, specifically .gitmodules and extensions.toml, to streamline GreyCat adoption and simplify future language extension integrations. Utilizing skills in extension development, submodule management, and version control with Git and TOML, Max established a scalable framework for multi-language tooling. The integration improved developer onboarding and tooling by making GreyCat readily available, and demonstrated effective cross-team collaboration through co-authored commits, though no major bugs were addressed during this period.