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Pytest Patterns teaches structured testing for Python backends using pytest, httpx, and factory_boy. Learn to organize tests across unit and integration layers, build reusable…

Python Backend Expert guides implementation of FastAPI endpoints, SQLAlchemy models, Pydantic schemas, and layered architecture with repositories and services. It covers async…

Master Testing Library and Vitest patterns for React components, custom hooks, and async workflows. This skill covers behavior-driven testing with userEvent, MSW for API mocking,…

System Architecture guides structural decisions for Python/React full-stack projects during the design phase. It covers backend layering (routes, services, repositories, models),…

UI Design System enforces design consistency across React and TypeScript projects through reusable tokens, spacing grids, and component patterns. It covers color systems,…