During November 2024, Dark77_77 refactored the movie domain model in the MrsSbr/amm-java-9-91-2024 repository, focusing on improving type safety and extensibility. They introduced a Genre enum and a new Movie interface using Java and object-oriented programming principles, restructuring the class hierarchy to support future genre expansion with minimal code changes. By adding explicit descriptions for comedy and drama genres, Dark77_77 enhanced metadata clarity for downstream UI and API consumers. The work addressed maintainability and future-proofing, resulting in a more robust domain contract. The depth of the changes reflects a thoughtful approach to scalable software design.