I want an Android application built from the ground up that lets college students create and manage campus events, accept registrations and payments, browse jobs / internships, and network through real-time chat. Nothing needs to plug into an existing college or business database—everything should be hosted in the new system you develop. Three distinct roles must be supported: • Students—create or join events, apply for jobs and internships, and chat one-to-one or in groups. • Businesses—post challenges, courses, jobs, or internships and track applications. • Administrators—oversee user accounts, moderate content, and access basic analytics. Core flows such as event creation, ticketing/QR check-in, job posting, application tracking, and in-app messaging should feel seamless and modern. Please use a scalable backend (Firebase, Supabase, or a stack you recommend) and follow standard Android UI/UX guidelines so we can publish to Google Play without extra rework. Acceptance criteria: 1. APK and source code that compile cleanly in the latest stable Android Studio. 2. Database schema and brief setup guide. 3. Demonstrable event registration, job board, and chat working in an emulator or on-device. 4. Admin dashboard (web or in-app) to manage users, events, and postings. If you’ve shipped similar multi-role apps or have sample screens illustrating your approach, share them with your proposal so I can gauge fit quickly.