During March 2025, this developer established a scalable domain model foundation for the ypech-itescam/POO-2025 repository, focusing on maintainability and future growth. They introduced core Java classes across multiple domains, including shapes, objects, calculators, stores, universities, and vehicles, implementing constructors, getters, setters, and basic behaviors to support consistent object-oriented design. Their work included comprehensive code deletion and deprecation of legacy modules, replacing outdated directories with safe placeholders to minimize disruption. By standardizing commit messages and restructuring folders, they improved repository hygiene and enabled faster onboarding. The depth of their contributions set the groundwork for domain-driven development and easier maintenance.