I need a mobile application that functions first and foremost as a social network focused on photo and video sharing. Think of an Instagram-style core where users can capture, upload, tag, and interact with visual content. I’m only targeting that single feature set for the first release—no messaging or elaborate profile modules yet—so the project scope is tight and clear. What matters most to me is a clean, familiar feed experience, lightning-fast media uploads, and intuitive in-app camera integration. You’re free to suggest the best stack; Flutter or React Native are both fine so long as the final build runs smoothly on iOS and Android. I’ll also need the complete source code, brief technical documentation, and a short walkthrough video so I can understand the flow before launch. Please include a realistic timeline for: • UI/UX wireframes • Core development and internal testing • Final build, store-ready packages, and hand-over If you have relevant samples, link them in your proposal.