I need a straightforward chat application developed for Android. The core requirement is real-time text messaging—no voice notes or file sharing at this stage. Key points • Native or cross-platform code is fine as long as the finished APK runs smoothly on current Android versions. • Clean, intuitive UI in line with modern Material Design guidelines. • Secure message delivery with basic encryption and push notifications. • A lightweight back-end (Firebase, Supabase, or a similarly reliable cloud service) to manage user accounts, authentication, and message storage. Please include in your proposal: 1. The framework or language you plan to use. 2. A brief outline of the architecture you recommend. 3. Links to any similar chat apps you’ve built. I’m aiming for a functional prototype that I can test on physical devices, with source code and clear setup instructions delivered on completion.