This series follows a fictional conversation between an experienced engineer and his nephew. Every episode explores one stage of how software moves from an idea to production. 👦 Nephew: Uncle, requirements are clear. I checked the codebase — there's already a FavoritesService I can extend for Wishlist. Now can I open VS Code? 👨‍🦳 Uncle: Almost. Tell me — what do you think HLD even is ? You've heard the term in every interview. What do you think it actually means? 👦 Nephew: So...