I want to build a cross-platform mobile application that lets NGOs connect with their members and supporters in a “one-to-many” style. Think of it as a streamlined networking hub where an organization can present itself, allow people to discover individual profiles, and open real-time chat channels for announcements or direct conversation. Primary audience The entire experience is geared toward NGOs, so usability, accessibility, and a simple onboarding flow are essential. Core functionality Profile discovery: users browse or search member profiles with key filters. Chat & announcements: a built-in messenger that supports both private messages and broad updates from the NGO to everyone who follows them. Scalable architecture: I expect the user base to grow over time, so please propose an approach that keeps performance smooth (Firebase, AWS Amplify, or your recommended stack). Deliverables • Complete source code for iOS and Android (React Native or Flutter preferred, but I’m open to a solid native solution) • Basic UI/UX aligned with common NGO branding standards • Simple admin panel to manage users and push notifications • Documentation covering setup, deployment, and any third-party services used Acceptance criteria The app must run on current Android and iOS versions, let a new user sign up, discover at least one profile, and exchange chat messages without errors. Push notifications for group announcements should arrive within ten seconds in a typical 4G scenario. If the scope feels clear, please share a concise roadmap, suggested tech stack, and timeline so we can move forward quickly.