Worked on the rosetta-models/common-domain-model repository to expand regulatory data support by enhancing the product taxonomy model. Focused on data modeling and enum definition using Rosetta, the work involved adding a new 'CSA' value to the TaxonomySourceEnum, enabling integration with Canadian Securities Administrators. This explicit enumeration update improved the maintainability and future extensibility of taxonomy sources within the product model. The approach emphasized code quality and business value, ensuring that the taxonomy model could accommodate broader regulatory requirements. No bugs were addressed during this period, with efforts concentrated on delivering this targeted feature enhancement for regulatory data extensibility.