I need an end-to-end build of an Android-only, skill-based reaction game where two players compete in real time. The core mechanic is simple: each round shows a visual cue, and the first user to tap wins. No chance elements, no predictions, no hidden RNG—winner is strictly determined by tap speed and accuracy, with server-side time stamping to avoid disputes. Scope of work • Android client: smooth, lightweight UI that launches straight into 1-v-1 rooms, shows countdowns and latency-free results, and routes users to a wallet section for entry fees and winnings. • Backend & real-time match engine: Node.js, Go, or a stack you propose that can guarantee sub-100 ms round-trip for Indian users while scaling horizontally. • Admin panel: web interface for user management, match logs, dispute resolution, withdrawals, and promo configuration. • Payments & KYC: integrate an Indian gateway that supports PAN-based KYC, instant deposits, and bank/UPI withdrawals. A clear audit trail is mandatory for every rupee. • Secure email-and-password authentication with salted hashing, refresh tokens, and optional 2FA toggle. • Full source code, deployment scripts (Docker/Kubernetes or similar), and a concise technical doc set. Timeline & milestones The build has to move fast—delivery of a functional MVP is expected as soon as realistically possible, followed by polish and compliance tweaks. I’m comfortable splitting the ₹2 lakh budget into milestone percentages tied to: 1. MVP gameplay loop online 2. Payments & KYC live 3. Admin panel + final QA What I’d like from you • A short note describing at least one similar real-money or real-time game you’ve shipped, plus the tech stack you’d choose here. • Estimated calendar schedule for each milestone. • Any questions that would help avoid scope creep before we start. I’ll review portfolios on a rolling basis and move quickly once I see a fit.