Product Requirements Document (PRD)

PONG-IT: Web2-Web3 Staking Game

Document Information

Field	Value
Product Name	PONG-IT
Version	1.0
Date	2025-01-XX
Status	Draft
Author	Development Team
Stakeholders	Product, Engineering, Design

Executive Summary
Product Overview
Functional Requirements (FRs)
Non-Functional Requirements (NFRs)
User Stories
Technical Specifications
Dependencies
Success Criteria
Timeline
Appendix

Executive Summary

PONG-IT is a hybrid Web2-Web3 multiplayer Pong game that allows players to stake cryptocurrency on matches with winner-takes-all payouts. The MVP focuses on delivering a smooth, low-latency gaming experience while integrating blockchain-based staking through a smart contract escrow system.

Core Value Proposition: Real-time skill-based gaming with cryptocurrency stakes, combining the speed of traditional web games with the transparency and financial incentives of blockchain.

Product Overview

Vision

Create the first truly playable real-time Web3 game that doesn't compromise on gameplay quality while offering meaningful financial stakes.

Goals

Launch functional staking system by Q1 2025
Achieve 100+ daily active matches in first month
Process $10k+ in staked volume in first quarter
Maintain <100ms gameplay latency
Zero fund losses due to smart contract vulnerabilities

Out of Scope (v1.0)

Tournament brackets
Team play (2v2)
NFT cosmetics
Mobile native app
Multiple token support (ETH only for MVP)

Functional Requirements (FRs)

FR-1: Wallet Integration

FR-1.1: Wallet Connection

Priority: P0 (Critical) Description: Users must be able to connect their Web3 wallet to the application.

Acceptance Criteria:

Detect MetaMask installation
Display "Connect Wallet" button when not connected
Show wallet address (truncated: 0x1234...5678) when connected
Persist connection state across page refreshes
Support wallet disconnection
Handle wallet switching (update UI when user changes wallet)
Show appropriate error if wallet not installed

User Flow:

User lands on homepage
→ Clicks "Connect Wallet"
→ MetaMask popup appears
→ User approves connection
→ Wallet address displayed in header
→ Staking features now accessible

FR-1.2: Network Detection

Priority: P1 (High) Description: Application must detect and handle different blockchain networks.

Acceptance Criteria:

Detect current network (chainId)
Display network name in UI
Prompt user to switch to supported network if on wrong chain
Support multiple networks (Sepolia testnet, Polygon mainnet, Base)
Disable staking features if on unsupported network

FR-2: Match Creation

FR-2.1: Create Staked Match

Priority: P0 (Critical) Description: Authenticated users can create a new staked match.

Acceptance Criteria:

Technical Details:

Contract function: stakeAsPlayer1(string roomCode) payable
Room code format: [A-Z0-9]{6}
Transaction timeout: 5 minutes

Error Handling:

User rejects transaction → Show error, allow retry
Insufficient balance → Show clear error message
Transaction fails → Refund user, show error
Network error → Retry mechanism

FR-2.2: Create Free Match

Priority: P1 (High) Description: Users can create non-staked matches (existing functionality preserved).

Acceptance Criteria:

Works without wallet connection
Same room code system as staked matches
No contract interaction
Clearly labeled as "Free Mode"

FR-3: Match Joining

FR-3.1: Join Staked Match

Priority: P0 (Critical) Description: Users can join existing staked matches by entering room code.

Acceptance Criteria:

Button visible only when wallet connected
Input field for 6-character room code
Real-time validation (uppercase conversion, length check)
Display match details before joining:
- Creator's address (truncated)
- Stake amount
- Total pot (stake × 2)
"Join & Stake" button triggers MetaMask transaction
Verify stake amount matches exactly
Show transaction pending state
Navigate to game screen after confirmation
Start game when both players staked

User Flow:

User clicks "Join Staked Match"
→ Enters room code "ABC123"
→ Sees match details: "0.1 ETH stake, 0.2 ETH pot"
→ Clicks "Join & Stake"
→ MetaMask shows: "Send 0.1 ETH to PongEscrow"
→ User confirms
→ Transaction pending...
→ Both players staked!
→ Game starts automatically

Error Handling:

Invalid room code → "Match not found"
Match already full → "Match is full"
Wrong stake amount → "Stake must be exactly X ETH"
Creator tries to join own match → "Cannot join own match"

FR-3.2: Browse Public Matches

Priority: P2 (Medium) Description: Users can browse available staked matches in a lobby.

Acceptance Criteria:

Display list of waiting matches
Show: Room code, stake amount, creator (truncated address), time waiting
Real-time updates (WebSocket)
Filter by stake amount
Sort by newest/oldest/stake size
Click to join directly

FR-4: Gameplay

FR-4.1: Real-Time Game Session

Priority: P0 (Critical) Description: Both players experience synchronized, low-latency gameplay.

Acceptance Criteria:

Game starts automatically when both staked
Display both players' addresses/names
Show current score (0-5)
Display stake amount on screen
60 FPS rendering (existing functionality)
Responsive controls (mouse, keyboard, touch)
Ball physics consistent across clients
First to 5 points wins
Game over screen displays winner with "Claim Prize" button

Performance Requirements:

Latency: <100ms average
Frame rate: 60 FPS stable
Network tick rate: 60 Hz
Max desync: 1 frame

Note: Spectator mode removed from MVP scope

FR-4.2: Game Abandonment

Priority: P1 (High) Description: Handle player disconnection during game.

Acceptance Criteria:

Detect player disconnect (socket timeout)
Wait 30 seconds for reconnection
If player doesn't return, declare other player winner
Winner can claim prize
Show appropriate message: "Opponent disconnected. You win! Claim your prize."

FR-5: Payout System

FR-5.1: Winner Claim Payout (Pull-Based)

Priority: P0 (Critical) Description: Winner manually claims full pot after game ends (pull-based pattern for security).

Acceptance Criteria:

Backend determines winner (authoritative)
Backend calls smart contract: declareWinner(roomCode, winnerAddress)
Contract marks winner as eligible to claim (does NOT auto-transfer)
Game over screen shows "Claim Prize" button for winner
Winner clicks button → Triggers claimPrize(roomCode) transaction
Winner pays gas for claim transaction
Contract transfers full pot (stake × 2) to winner
Display success message with transaction hash
Update user's total winnings in database

User Flow:

Game ends → Backend declares winner
→ Winner sees: "You won! Claim 0.2 ETH"
→ Winner clicks "Claim Prize"
→ MetaMask popup: Gas fee ~$0.50
→ Winner confirms
→ Receives 0.2 ETH
→ "Prize claimed successfully! ✅"

Technical Details:

Backend wallet only needed for declareWinner() call (low gas)
Winner pays gas for their own claim (more decentralized)
Prevents push-based reentrancy attacks
Event emission: MatchCompleted(roomCode, winner) then PrizeClaimed(roomCode, winner, amount)

Error Handling:

Winner rejects claim transaction → Can retry anytime
Claim transaction fails → Retry mechanism
Winner never claims → Funds locked (consider timeout after 30 days)

FR-5.2: Refund for Abandoned Matches

Priority: P1 (High) Description: Players get refunded if opponent never joins or match is abandoned.

Acceptance Criteria:

If only player 1 staked and 10 minutes pass → Refund available
"Cancel Match & Refund" button visible after 10 minutes
User triggers refund (self-serve, no backend needed)
Contract function: claimRefund(roomCode)
Stake returned minus gas fees (user pays gas)
Match marked as cancelled

FR-5.3: Unclaimed Prize Timeout

Priority: P2 (Medium) Description: Handle prizes that are never claimed by winners.

Acceptance Criteria:

If winner doesn't claim within 30 days → Loser can claim refund
Contract function: claimExpiredMatchRefund(roomCode)
Both players get original stake back
Prevents funds locked forever

FR-6: User Profile & Stats

FR-6.1: Player Statistics

Priority: P1 (High) Description: Track and display player performance metrics.

Acceptance Criteria:

FR-6.2: Leaderboard

Priority: P2 (Medium) Description: Global ranking of top players.

Acceptance Criteria:

Ranked by total winnings (default)
Alternate sorts: win rate, matches played, streak
Top 100 players displayed
Real-time updates
Show player's rank (if in top 100)

FR-7: Match History

FR-7.1: Personal Match History

Priority: P2 (Medium) Description: Users can view their past matches.

Acceptance Criteria:

List of last 50 matches
Show: Date, opponent, stake, result, payout
Filter by: Won/Lost, Stake amount, Date range
Link to transaction on block explorer
Paginated results

FR-8: Admin & Safety

FR-8.1: Emergency Pause

Priority: P1 (High) Description: Ability to pause contract in case of critical bug.

Acceptance Criteria:

Contract owner can pause new match creation
Existing matches can still be completed
Refunds still available when paused
Clear message to users when paused

FR-8.2: Backend Health Monitoring

Priority: P1 (High) Description: Monitor backend services for failures.

Acceptance Criteria:

Health check endpoint (/health)
Alert if backend wallet gas < threshold
Alert if contract calls fail repeatedly
Monitor WebSocket connection count
Log all critical errors

Non-Functional Requirements (NFRs)

NFR-1: Performance

NFR-1.1: Gameplay Latency

Priority: P0 (Critical) Requirement: Average input-to-screen latency must be <100ms

Measurement:

95th percentile latency <150ms
99th percentile latency <200ms
Monitor via New Relic / Datadog

Rationale: Pong requires real-time responsiveness. Anything >100ms feels laggy.

NFR-1.2: Frame Rate

Priority: P0 (Critical) Requirement: Game must maintain 60 FPS on target devices

Target Devices:

Desktop: Chrome/Firefox/Safari (latest 2 versions)
Mobile: iPhone 11+, Android flagship devices
Screen sizes: 375px - 2560px width

Measurement:

FPS monitoring via requestAnimationFrame timing
Drop rate <1% (less than 1% of frames dropped)

NFR-1.3: Load Time

Priority: P1 (High) Requirement: Page load to interactive <3 seconds

Measurement:

First Contentful Paint (FCP): <1.5s
Time to Interactive (TTI): <3s
Lighthouse Performance Score: >90

NFR-1.4: WebSocket Stability

Priority: P0 (Critical) Requirement: Socket connection uptime >99.5%

Measurement:

Reconnection rate <5%
Connection success rate >99%
Automatic reconnection within 5 seconds

NFR-2: Security

NFR-2.1: Smart Contract Security

Priority: P0 (Critical) Requirements:

Professional audit by reputable firm (CertiK, OpenZeppelin, Trail of Bits)
Zero critical vulnerabilities
Reentrancy protection (ReentrancyGuard)
Pull-over-push pattern for payouts (prevents reentrancy)
Checks-Effects-Interactions pattern
Access control (Ownable)
Input validation on all functions
Emergency pause mechanism

Pre-Launch:

Deploy to testnet for 2+ weeks
Bug bounty program ($5k-$50k rewards)
Internal security review

Security Benefits of Pull-Based Payouts:

Eliminates reentrancy attack vectors
Winner controls when to claim (no forced transfers)
Reduces backend gas costs (winners pay own gas)
More transparent (explicit claim transactions)

NFR-2.2: Backend Security

Priority: P0 (Critical) Requirements:

Private keys stored in secure vault (AWS KMS, HashiCorp Vault)
Backend wallet only authorized to call declareWinner()
Rate limiting on API endpoints (100 req/min per IP)
DDoS protection (Cloudflare)
HTTPS only (no HTTP)
CORS properly configured

NFR-2.3: Frontend Security

Priority: P1 (High) Requirements:

No sensitive data in localStorage
Input sanitization (prevent XSS)
Content Security Policy (CSP) headers
Subresource Integrity (SRI) for CDN assets
Wallet connection via secure protocols only

NFR-2.4: Cheating Prevention

Priority: P0 (Critical) Requirements:

Server-authoritative game logic (client can't fake position)
Ball physics calculated server-side only
Score validated server-side
Packet encryption (WSS)
Unusual behavior detection (too-fast inputs, impossible moves)

NFR-3: Scalability

NFR-3.1: Concurrent Matches

Priority: P1 (High) Requirement: Support 100+ concurrent matches

Measurement:

CPU usage <70% at 100 matches
Memory usage <4GB at 100 matches
No performance degradation

Horizontal Scaling:

Stateless backend (can add more servers)
Redis for session state
Load balancer ready

NFR-3.2: Database Performance

Priority: P1 (High) Requirement: Query response time <50ms (95th percentile)

Optimization:

Index on walletAddress
Index on createdAt (for match history)
Connection pooling
Query caching (Redis)

NFR-3.3: Blockchain Throughput

Priority: P1 (High) Requirement: Handle transaction spikes during peak times

Strategy:

Use L2 chain (Polygon, Base) for low fees + high throughput
Gas price oracle for optimal pricing
Transaction batching (if possible)
Fallback RPC nodes

NFR-4: Availability

NFR-4.1: Uptime

Priority: P0 (Critical) Requirement: 99.5% uptime (SLA)

Maximum Downtime:

3.65 hours per month
43.8 hours per year

Monitoring:

Pingdom / UptimeRobot for external monitoring
PagerDuty alerts for downtime
Status page (status.pongit.io)

NFR-4.2: Disaster Recovery

Priority: P1 (High) Requirements:

Daily database backups (7-day retention)
Contract upgradability (proxy pattern) OR verified deployment script
Backend redundancy (multiple servers)
Recovery Time Objective (RTO): <1 hour
Recovery Point Objective (RPO): <5 minutes

NFR-5: Usability

NFR-5.1: Mobile Responsiveness

Priority: P0 (Critical) Requirement: Fully playable on mobile devices

Criteria:

Touch controls responsive
UI scales properly (320px - 768px width)
No horizontal scrolling
Buttons large enough for touch (44px min)
Text readable without zoom

NFR-5.2: Wallet Onboarding

Priority: P1 (High) Requirement: Clear guidance for new Web3 users

Criteria:

"What is a wallet?" help text
Link to MetaMask installation
Tooltips on first wallet connection
Error messages in plain English (not tech jargon)
Tutorial video (optional)

NFR-5.3: Transaction Clarity

Priority: P1 (High) Requirement: Users understand what they're paying for

Criteria:

Show exact amount before transaction
Display USD equivalent
Explain gas fees
Show pending/confirmed/failed states clearly
Provide block explorer links

NFR-5.4: Accessibility

Priority: P2 (Medium) Requirements:

NFR-6: Maintainability

NFR-6.1: Code Quality

Priority: P1 (High) Requirements:

NFR-6.2: Documentation

Priority: P1 (High) Requirements:

README with setup instructions
API documentation (OpenAPI/Swagger)
Smart contract NatSpec comments
Architecture diagrams
Runbook for common issues

NFR-6.3: Monitoring & Logging

Priority: P1 (High) Requirements:

Structured logging (JSON format)
Error tracking (Sentry)
Performance monitoring (New Relic / Datadog)
User analytics (Mixpanel / Amplitude)
Contract event monitoring (The Graph / Dune Analytics)

NFR-7: Compliance

NFR-7.1: Legal Compliance

Priority: P0 (Critical) Requirements:

Terms of Service
Privacy Policy
Age verification (18+)
Geo-blocking for restricted jurisdictions (if applicable)
GDPR compliance (data deletion on request)

Gambling vs. Skill Game:

Emphasize skill-based nature
Avoid "gambling" terminology
Consult legal counsel before launch

NFR-7.2: AML/KYC (Future)

Priority: P3 (Low for MVP) Note: Not required for MVP (<$600 transactions), but plan for future

NFR-8: Testability

NFR-8.1: Unit Test Coverage

Priority: P1 (High) Requirement: >70% code coverage

Focus Areas:

Smart contract: 100% (critical)
Backend game logic: 80%
Frontend components: 60%

Tools:

Hardhat (contract testing)
Jest + React Testing Library (frontend)
Mocha (backend)

NFR-8.2: Integration Tests

Priority: P1 (High) Requirements:

End-to-end test: Create match → Join → Play → Win → Payout
Test on testnet before mainnet
Load testing (100 concurrent users)
Chaos engineering (simulate failures)

User Stories

Epic 1: Wallet & Authentication

US-1.1: As a new user, I want to connect my MetaMask wallet so I can play staked matches.

Priority: P0
Estimate: 2 story points
Acceptance Criteria: FR-1.1

US-1.2: As a user, I want to see my wallet balance so I know if I have enough funds to stake.

Priority: P2
Estimate: 1 story point

Epic 2: Match Creation & Joining

US-2.1: As a user, I want to create a staked match with a custom amount so I can challenge others.

Priority: P0
Estimate: 5 story points
Acceptance Criteria: FR-2.1

US-2.2: As a user, I want to share a match code with my friend so they can join my private match.

Priority: P0
Estimate: 2 story points
Acceptance Criteria: Copy code, share link

US-2.3: As a user, I want to browse public matches so I can find opponents quickly.

Priority: P2
Estimate: 3 story points
Acceptance Criteria: FR-3.2

Epic 3: Gameplay

US-3.1: As a player, I want smooth 60 FPS gameplay so I can compete fairly.

Priority: P0
Estimate: 0 (already exists)
Acceptance Criteria: NFR-1.1, NFR-1.2

US-3.2: As a player, I want to see the stake amount during the game so I remember what I'm playing for.

Priority: P1
Estimate: 1 story point

Epic 4: Payouts

US-4.1: As a winner, I want to claim my prize with a single click so I can receive my winnings securely.

Priority: P0
Estimate: 5 story points
Acceptance Criteria: FR-5.1

US-4.2: As a user, I want to get refunded if my opponent never joins so I don't lose my stake.

Priority: P1
Estimate: 3 story points
Acceptance Criteria: FR-5.2

Epic 5: Profile & Stats

US-5.1: As a user, I want to see my win/loss record so I can track my performance.

Priority: P1
Estimate: 3 story points
Acceptance Criteria: FR-6.1

US-5.2: As a competitive player, I want to see the leaderboard so I can compare myself to others.

Priority: P2
Estimate: 2 story points
Acceptance Criteria: FR-6.2

Technical Specifications

Tech Stack

Frontend:

React 18
ethers.js v6 (blockchain interaction)
Socket.io-client (real-time communication)
React Router (navigation)
Canvas API (game rendering)

Backend:

Node.js 18+
Express.js
Socket.io (WebSocket server)
ethers.js (contract interaction)
MongoDB (user data, stats)

Smart Contract:

Solidity ^0.8.20
Hardhat (development)
OpenZeppelin contracts (ReentrancyGuard, Ownable)

Infrastructure:

Hosting: Vercel (frontend), Railway/Render (backend)
Database: MongoDB Atlas
RPC: Alchemy / Infura
Monitoring: Sentry, Datadog

Smart Contract API

Contract Address: TBD (deploy to testnet first)

Functions:

// Player 1 creates match and stakes
function stakeAsPlayer1(string calldata roomCode) external payable;

// Player 2 joins match with equal stake
function stakeAsPlayer2(string calldata roomCode) external payable;

// Backend declares winner (only backend can call) - does NOT transfer funds
function declareWinner(string calldata roomCode, address winner) external;

// Winner claims their prize (pull-based)
function claimPrize(string calldata roomCode) external;

// Player can refund if opponent doesn't join (after timeout)
function claimRefund(string calldata roomCode) external;

// Either player can claim refund if winner doesn't claim (after 30 days)
function claimExpiredMatchRefund(string calldata roomCode) external;

// Emergency pause (only owner)
function pause() external;
function unpause() external;

Events:

event MatchCreated(string indexed roomCode, address indexed player1, uint256 stake);
event PlayerStaked(string indexed roomCode, address indexed player2, uint256 stake);
event WinnerDeclared(string indexed roomCode, address indexed winner);
event PrizeClaimed(string indexed roomCode, address indexed winner, uint256 amount);
event MatchRefunded(string indexed roomCode, address indexed player, uint256 amount);

API Endpoints

Authentication:

POST /api/auth/nonce - Get nonce for signature
POST /api/auth/verify - Verify signature, return JWT

User:

GET /api/user/:address - Get user profile
GET /api/user/:address/stats - Get user statistics
GET /api/user/:address/matches - Get match history

Leaderboard:

GET /api/leaderboard - Get top players
GET /api/leaderboard/:address - Get user rank

Health:

GET /health - Health check

Database Schema

Users Collection:

{
  _id: ObjectId,
  walletAddress: String, // Lowercase, indexed, unique
  username: String, // Optional display name
  totalGamesPlayed: Number,
  wins: Number,
  losses: Number,
  totalStaked: String, // In ETH (string for precision)
  totalWon: String,
  netProfit: String, // Calculated: totalWon - totalStaked
  currentStreak: Number, // Win streak
  bestStreak: Number,
  createdAt: Date,
  lastActive: Date
}

Matches Collection (Optional - contract is source of truth):

{
  _id: ObjectId,
  roomCode: String, // Indexed
  player1: String, // Wallet address
  player2: String,
  stakeAmount: String,
  winner: String,
  status: String, // CREATED, ACTIVE, COMPLETED, CANCELLED
  txHash: {
    create: String,
    join: String,
    complete: String
  },
  createdAt: Date,
  completedAt: Date
}

Dependencies

External Services

MetaMask: Required for wallet connection
Blockchain RPC: Alchemy or Infura (10k req/day free tier sufficient for MVP)
MongoDB Atlas: Free tier (512MB) sufficient for MVP
Block Explorer: Etherscan/Polygonscan for transaction links

Internal Dependencies

Existing game already has: Room system, Socket.io, Game physics
Need to add: Wallet integration, Contract interaction, Backend contract listener

Success Criteria

Launch Success (Week 1)

Month 1 Success

Quarter 1 Success

2,000+ unique wallets
500+ daily matches
$50k+ quarterly volume
Featured in 1+ crypto gaming publication
Active Discord community (200+ members)

Timeline

Phase 1: Foundation (Week 1-2)

Phase 2: Integration (Week 3-4)

Phase 3: Polish (Week 5-6)

Phase 4: Launch (Week 7-8)

Risks & Mitigation

Risk	Probability	Impact	Mitigation
Smart contract vulnerability	Low	Critical	Professional audit, pull-based pattern, testnet beta, bug bounty
Backend downtime during match	Medium	High	Auto-refund after timeout, redundant servers
Low user adoption	High	High	Free mode + staked mode, low minimum stakes
Gas fees too high	Medium	Medium	Deploy on L2 (Polygon/Base), not Ethereum mainnet
Regulatory issues	Low	Critical	Legal review, emphasize skill-based nature
Backend wallet key compromise	Low	Medium	Pull-based payouts reduce risk, hardware wallet, key rotation
Winner never claims prize	Low	Low	30-day timeout allows refund for both players

Appendix

Glossary

Stake: Amount of cryptocurrency locked by both players before match
Pot: Total prize pool (stake × 2)
Room Code: Unique 6-character identifier for a match
Escrow: Smart contract holding funds until match completion
Gas: Transaction fee paid to blockchain network
L2: Layer 2 scaling solution (Polygon, Arbitrum, etc.)
Oracle: Off-chain data source (backend) that informs smart contract

References

Version History

Version	Date	Changes	Author
1.0	2025-01-XX	Initial PRD	Development Team

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Product Requirements Document (PRD)

PONG-IT: Web2-Web3 Staking Game

Document Information

Table of Contents

Executive Summary

Product Overview

Vision

Goals

Out of Scope (v1.0)

Functional Requirements (FRs)

FR-1: Wallet Integration

FR-1.1: Wallet Connection

FR-1.2: Network Detection

FR-2: Match Creation

FR-2.1: Create Staked Match

FR-2.2: Create Free Match

FR-3: Match Joining

FR-3.1: Join Staked Match

FR-3.2: Browse Public Matches

FR-4: Gameplay

FR-4.1: Real-Time Game Session

FR-4.2: Game Abandonment

FR-5: Payout System

FR-5.1: Winner Claim Payout (Pull-Based)

FR-5.2: Refund for Abandoned Matches

FR-5.3: Unclaimed Prize Timeout

FR-6: User Profile & Stats

FR-6.1: Player Statistics

FR-6.2: Leaderboard

FR-7: Match History

FR-7.1: Personal Match History

FR-8: Admin & Safety

FR-8.1: Emergency Pause

FR-8.2: Backend Health Monitoring

Non-Functional Requirements (NFRs)

NFR-1: Performance

NFR-1.1: Gameplay Latency

NFR-1.2: Frame Rate

NFR-1.3: Load Time

NFR-1.4: WebSocket Stability

NFR-2: Security

NFR-2.1: Smart Contract Security

NFR-2.2: Backend Security

NFR-2.3: Frontend Security

NFR-2.4: Cheating Prevention

NFR-3: Scalability

NFR-3.1: Concurrent Matches

NFR-3.2: Database Performance

NFR-3.3: Blockchain Throughput

NFR-4: Availability

NFR-4.1: Uptime

NFR-4.2: Disaster Recovery

NFR-5: Usability

NFR-5.1: Mobile Responsiveness

NFR-5.2: Wallet Onboarding

NFR-5.3: Transaction Clarity

NFR-5.4: Accessibility

NFR-6: Maintainability

NFR-6.1: Code Quality

NFR-6.2: Documentation

NFR-6.3: Monitoring & Logging

NFR-7: Compliance

NFR-7.1: Legal Compliance

NFR-7.2: AML/KYC (Future)

NFR-8: Testability

NFR-8.1: Unit Test Coverage

NFR-8.2: Integration Tests

User Stories

Epic 1: Wallet & Authentication

Epic 2: Match Creation & Joining

Epic 3: Gameplay

Epic 4: Payouts

Epic 5: Profile & Stats

Technical Specifications