Developed the initial backend foundation for the andressalamancaumng/2025i-pruebas repository, focusing on establishing a scalable and maintainable project structure using FastAPI and Python. The work involved setting up a clean backend skeleton, organizing project files, and standardizing dependency management by renaming the requirements file. No functional endpoints were implemented during this period, as the primary goal was to define conventions and scaffolding to support future feature development. This groundwork enables faster onboarding for new contributors and lays the technical basis for integrating services, endpoints, and potential CI/CD pipelines in subsequent development sprints, emphasizing backend development best practices.