I am creating a cross-platform social-media style app in Flutter with a clear focus on community building and learning. The core experience revolves around vibrant user interaction, so I need an experienced Flutter developer who can take the lead on the following must-have elements: • Live streaming / webinar module that lets hosts broadcast in real-time and participants engage through comments or quick reactions. • Group chat & collaboration spaces where members can exchange messages instantly, share files, and organise topic-based discussions. • Clean, scalable architecture and readable Dart code ready for future features such as user profiles or news-style activity feeds. You will deliver production-ready Android and iOS builds plus the full, well-documented source code stored in a Git repo of my choice. Smooth performance, intuitive navigation, and clear, modern UI components are essential acceptance criteria. If you’ve already integrated real-time chat, WebRTC, or live-video SDKs in Flutter, tell me what you used and how quickly you can replicate that success here.