Legacy

              Legacy: The World's First Blockchain-Powered Digital Will Builder
                                                "Your Legacy, On-Chain Forever."

🌟 Project Overview Legacy is a groundbreaking blockchain-integrated digital estate planning platform that revolutionizes how individuals secure and transfer their assets to future generations. As the first comprehensive will builder on blockchain, Legacy bridges the gap between traditional estate planning and the Web3 ecosystem, enabling users to create legally-structured wills that encompass both traditional and digital assets with automated distribution mechanisms.

🚀 The Problem We Solve In the rapidly growing Web3 economy, billions of dollars in cryptocurrency and digital assets are at risk of being lost forever when holders pass away without proper estate planning. Traditional will systems cannot adequately handle: 1.Cryptocurrency wallets and private keys 2.NFT collections and digital collectibles 3.DeFi positions and staking rewards 4.Cross-blockchain assets across multiple networks 5.Automated verification of the testator's well-being 6.Direct wallet-to-wallet transfers for beneficiaries 7.Legacy solves this critical gap by providing a comprehensive, blockchain-aware estate planning solution that ensures digital legacies are preserved and transferred seamlessly.

💎 Key Innovations & Features

1. Comprehensive Multi-Asset Management Traditional Assets: Real estate, vehicles, bank accounts, investments, personal property, and business interests On-Chain Assets: 1.Cryptocurrency holdings (BTC, ETH, USDC, etc.) 2.NFT collections with tokenId and contract addresses 3.DeFi positions and staking rewards 4.Custom tokens across multiple blockchains 5.Multi-Blockchain Support: Ethereum, Polygon, Binance Smart Chain, Solana, Avalanche, Arbitrum, Optimism, Base, and more.

2. Automated Wellness Check System 1.Monthly email verification to confirm testator's well-being 2.Grace period management with multiple check-ins before distribution 3.Simple response mechanism - reply to confirm or update will 4.No response triggers automated beneficiary notification after defined period 5.Prevents premature distribution while ensuring timely asset transfer

3. Smart Beneficiary Distribution 1.Individual asset allocation with custom percentage splits 2.Wallet address verification for on-chain asset transfers 3.Automated email notifications to beneficiaries with access instructions 4.Detailed asset documentation including location, access methods, and special instructions 5.Executor and guardian assignment for minor children

4. Professional Will Builder Interface 1.6-Step Guided Process: 2.Personal Information - Testator details, marital status, occupation 3.Traditional Assets - Physical and financial assets with document uploads 4.On-Chain Assets - Cryptocurrency, NFTs, tokens with blockchain details 5.Executor Selection - Designated will executor and guardians 6.Special Instructions - Final wishes, funeral arrangements, specific directives 7.Review & Generate - Professional will document creation

5. Security & Privacy Features -Wallet-based authentication - No passwords to compromise -Encrypted data storage - Sensitive information protected -Access control - Only wallet owner can view/edit their will -Blockchain immutability - Asset records verifiable on-chain -Decentralized identity - User sovereignty maintained

6. Document Generation & Management -Professional PDF generation of complete will documents -Legally structured format with proper clauses -Asset inventory listings with full details -Beneficiary contact information and allocation percentages -Executor instructions and special wishes -Digital signatures and timestamps

7. User Experience Excellence -Beautiful, intuitive UI with modern design principles -Responsive design - Works seamlessly on mobile, tablet, and desktop -Real-time validation with helpful error messages -Progress indicators showing completion status -Smooth animations enhancing user engagement -Magnetic buttons and interactive elements

🎯 Why Legacy is Groundbreaking

1.First Mover Advantage Legacy is pioneering the intersection of traditional estate planning and blockchain technology. No existing solution comprehensively addresses digital asset inheritance with automated distribution mechanisms.

2.Real-World Problem Solving $100+ billion in cryptocurrency potentially lost due to inadequate estate planning Growing Web3 adoption creates urgent need for digital inheritance solutions Peace of mind for crypto holders and their families Bridge between generations - helping non-crypto-native beneficiaries access inherited assets

3.Technical Innovation Hybrid architecture combining Web2 reliability with Web3 capabilities Multi-blockchain agnostic approach for maximum compatibility Automated verification systems reducing manual intervention Type-safe full-stack implementation minimizing bugs Scalable infrastructure ready for mass adoption

4.Social Impact Financial inclusion - Ensuring digital wealth transfers across generations Family protection - Safeguarding loved ones' financial futures Education - Teaching responsible digital asset management Legacy preservation - Ensuring individuals' wishes are honored

📊 Key Metrics & Capabilities ✅ 6-step comprehensive will creation process ✅ 10+ blockchains supported for digital assets ✅ Unlimited asset and beneficiary additions ✅ Monthly automated wellness checks ✅ Real-time data synchronization ✅ Mobile-first responsive design ✅ Type-safe full-stack implementation ✅ Production-ready with error handling and logging

🎨 User Journey Connect Wallet → User connects Web3 wallet (MetaMask, etc.) Registration → Quick account setup with email Personal Info → Enter testator details Add Assets → List traditional assets (property, vehicles, etc.) Add Crypto → Link cryptocurrency wallets and NFTs Assign Beneficiaries → Designate inheritors with wallet addresses Name Executor → Choose will executor and guardians Special Instructions → Add final wishes and directives Review & Generate → Create professional will document Automated Monitoring → Monthly wellness checks begin Distribution → Automatic beneficiary notification when needed

🏆 Competitive Advantages Only blockchain-native will builder in existence Automated verification system - No manual checking needed True Web3 integration - Not just a digitized paper will Multi-chain support - Works with user's entire crypto portfolio Beautiful UX - Estate planning that's actually pleasant Type-safe architecture - Fewer bugs, faster development Open for integration - tRPC APIs enable ecosystem growth

🌍 Market Opportunity 420+ million cryptocurrency users worldwide $2.5+ trillion total crypto market capitalization Growing concern about digital asset inheritance Aging crypto early adopters entering estate planning phase Institutional adoption driving need for professional solutions

🔮 Future Roadmap Smart contract integration for automated asset transfers Multi-signature execution for enhanced security Video will messages for personal touches Integration with legal services for will validation Mobile apps (iOS/Android) for accessibility AI-powered suggestions for asset distribution International expansion with multi-language support NFT will certificates as proof of completion

💡 Innovation Summary Legacy represents a paradigm shift in estate planning by: Democratizing access to professional-grade will creation Protecting digital wealth for future generations Automating verification processes traditionally requiring lawyers Bridging Web2 and Web3 ecosystems seamlessly Ensuring digital legacies aren't lost to forgotten passwords This isn't just a will builder—it's a comprehensive digital legacy platform that gives crypto holders peace of mind, families security, and the blockchain ecosystem a critical missing piece of infrastructure.

"Your Legacy, On-Chain Forever. Building digital wills for the Web3 generation."

Built this with Next.js 15 (App Router), TypeScript, tRPC, Prisma + PostgreSQL, and wagmi/RainbowKit for Web3 stuff. For styling I went with Tailwind CSS 4 and Framer Motion for animations. Next.js 15 + App Router: Honestly, I wanted to try the latest version and the App Router gives me better performance with Server Components. Plus the new streaming features are pretty nice. tRPC: This was a game-changer. No more maintaining separate API types and frontend types. I define my API endpoints once and get full type safety everywhere. The React Query integration is built-in which handles caching automatically. Prisma + PostgreSQL: I needed relational data (users → wills → assets → beneficiaries) and Prisma's type generation is incredible. Change your schema, run migration, and TypeScript immediately tells you everywhere you need to update your code. wagmi + RainbowKit: For wallet connections, wagmi hooks make it dead simple. RainbowKit gave me a beautiful wallet modal out of the box without having to build all that UI myself. Added their "cool mode" because, why not? 🎉

Avail Nexus Integration - The Core Innovation 🌟 This is where things get interesting. I integrated Avail's Nexus SDK (@avail-project/nexus-core) as the backbone of the cross-chain asset management system. Why Avail Nexus? When building a will builder for crypto assets, I realized users don't just have assets on one chain. They've got: ETH on Ethereum mainnet USDC on Polygon NFTs on Arbitrum DeFi positions on Optimism Tokens on Base Querying each chain separately would be a nightmare - different RPC endpoints, rate limits, inconsistent APIs. That's where Avail Nexus comes in.

Why This is Powerful: For the "On-Chain Assets" step in the will builder, instead of asking users to manually enter every token they own, I can potentially: Auto-detect all their holdings across chains Show real-time portfolio values Verify wallet addresses actually have the assets claimed Support new chains as Nexus adds them (no code changes needed) Current Usage: Right now I'm using it for: Unified balance queries - Getting all crypto holdings at once Cross-chain wallet verification - Confirming beneficiary addresses are valid Multi-chain context - Users see their full crypto portfolio in one view Future Plans with Nexus: The SDK opens up some really cool possibilities I want to explore: Automatic asset discovery - Scan user's wallet and pre-populate their on-chain assets Real-time portfolio tracking - Show current values of inherited assets Cross-chain will execution - When wellness check fails, trigger notifications across all chains Smart beneficiary distribution - Use Nexus to coordinate asset transfers across multiple chains The Benefit Over Traditional Approaches: Without Nexus, I'd need to: Integrate separate libraries for Ethereum (viem), Solana (web3.js), etc. Maintain different connection logic for each chain Handle different RPC providers and rate limits Update code every time I add a new blockchain With Nexus: Single SDK handles everything One connection, all chains Consistent API regardless of blockchain Avail maintains the infrastructure