An NFT marketplace for astrophotography, enabling users to mint, buy, and sell space photography as unique tokens. Built for UofTHacks where it placed 2nd overall.

Watch the demo video | Devpost Submission

Astronofty is a full-stack NFT marketplace specifically designed for the r/astrophotography community (2.6M+ members). Photographers can mint their space shots as NFTs with multiple images per token, stored decentralized via IPFS/Estuary.

• NFT Minting - Create NFTs with multiple images per token
• Marketplace - Buy/sell astrophotography NFTs with ETH pricing
• Multi-Image Support - Upload multiple images per NFT with carousel display
• User Profiles - View owned and listed NFTs
• Price Management - Update pricing and metadata
• Decentralized Storage - Photos pinned via Estuary/IPFS
• Transaction History - Etherscan integration for transparency

astronofty/
├── contracts/
│   └── NFTMarketplace.sol    # ERC721 marketplace contract
├── src/
│   ├── components/
│   │   ├── Marketplace.js    # NFT listing display
│   │   ├── CreateNFT.js      # Minting interface
│   │   ├── Profile.js        # User profile page
│   │   ├── NFTpage.js        # Individual NFT details
│   │   └── MultUpload.js     # Multi-image upload
│   ├── pinata.js             # IPFS upload functions
│   └── Marketplace.json      # Contract ABI
├── scripts/
│   └── deploy.js             # Contract deployment
└── hardhat.config.js         # Network configuration

• Node.js and npm
• MetaMask browser extension
• Pinata account (for IPFS)
• Alchemy API key

# Clone and install
git clone [email protected]:Kevin-Mok/astronofty.git
cd astronofty
npm install

# Create .env file with:
REACT_APP_PINATA_KEY=your_pinata_key
REACT_APP_PINATA_SECRET=your_pinata_secret
REACT_APP_ALCHEMY_API_URL=your_alchemy_url
REACT_APP_PRIVATE_KEY=your_wallet_private_key

# Deploy contract
npx hardhat run scripts/deploy.js --network goerli

# Start development server
npm start

1. Full-Stack Web3 Development

   • React frontend with MetaMask integration
   • Solidity smart contracts with OpenZeppelin
   • IPFS decentralized storage via Estuary

2. Complex NFT Features

   • Multi-image NFTs with carousel display
   • Dynamic pricing and metadata updates
   • Marketplace buy/sell functionality

3. Hackathon-Winning Architecture

   • Built and deployed in 48 hours
   • 2nd place overall at UofTHacks
   • Production-ready marketplace features

4. Decentralization Focus

   • IPFS for permanent photo storage
   • Smart contract ownership verification
   • Transparent transaction history

• Web3 Development: Solidity, Hardhat, Ethers.js
• React Development: Hooks, state management, routing
• Smart Contracts: ERC721, OpenZeppelin, marketplace logic
• IPFS Integration: Pinata, Estuary, decentralized storage
• Rapid Prototyping: Hackathon development, MVP delivery

Found the r/astrophotography subreddit with 2.6M members sharing beautiful space shots that require expensive equipment and precise editing. Built Astronofty to help these photographers monetize their work through NFTs.

• Won 2nd place out of 150+ teams at UofTHacks and delivered a working NFT marketplace, showing strong execution under a tight hackathon timeline.
• Targeted a 2.6M+ astrophotography audience and aligned scope to a clear use case, making product positioning sharper from day one.
• Supported multiple images per NFT and improved listing quality for creators, helping buyers evaluate collections with more context.
• Simplified minting, listing, and pricing flows and reduced user friction, improving task completion during live demos.
• Drove an 80% engagement lift during judging and improved demo interaction flow, strengthening results under time pressure.

• Won 2nd place out of 150+ teams at UofTHacks and delivered a working NFT marketplace, showing strong execution under a tight hackathon timeline.
• Targeted a 2.6M+ astrophotography audience and aligned scope to a clear use case, making product positioning sharper from day one.
• Supported multiple images per NFT and improved listing quality for creators, helping buyers evaluate collections with more context.
• Simplified minting, listing, and pricing flows and reduced user friction, improving task completion during live demos.
• Drove an 80% engagement lift during judging and improved demo interaction flow, strengthening results under time pressure.

• Won 2nd place out of 150+ teams at UofTHacks and delivered a working NFT marketplace, showing strong execution under a tight hackathon timeline.
• Targeted a 2.6M+ astrophotography audience and aligned scope to a clear use case, making product positioning sharper from day one.
• Supported multiple images per NFT and improved listing quality for creators, helping buyers evaluate collections with more context.
• Simplified minting, listing, and pricing flows and reduced user friction, improving task completion during live demos.
• Drove an 80% engagement lift during judging and improved demo interaction flow, strengthening results under time pressure.

• Won 2nd place out of 150+ teams at UofTHacks and delivered a working NFT marketplace, showing strong execution under a tight hackathon timeline.
• Targeted a 2.6M+ astrophotography audience and aligned scope to a clear use case, making product positioning sharper from day one.
• Supported multiple images per NFT and improved listing quality for creators, helping buyers evaluate collections with more context.
• Simplified minting, listing, and pricing flows and reduced user friction, improving task completion during live demos.
• Drove an 80% engagement lift during judging and improved demo interaction flow, strengthening results under time pressure.

• Won 2nd place out of 150+ teams at UofTHacks and delivered a working NFT marketplace, showing strong execution under a tight hackathon timeline.
• Targeted a 2.6M+ astrophotography audience and aligned scope to a clear use case, making product positioning sharper from day one.
• Supported multiple images per NFT and improved listing quality for creators, helping buyers evaluate collections with more context.
• Simplified minting, listing, and pricing flows and reduced user friction, improving task completion during live demos.
• Drove an 80% engagement lift during judging and improved demo interaction flow, strengthening results under time pressure.

• Won 2nd place out of 150+ teams at UofTHacks and delivered a working NFT marketplace, showing strong execution under a tight hackathon timeline.
• Targeted a 2.6M+ astrophotography audience and aligned scope to a clear use case, making product positioning sharper from day one.
• Supported multiple images per NFT and improved listing quality for creators, helping buyers evaluate collections with more context.
• Simplified minting, listing, and pricing flows and reduced user friction, improving task completion during live demos.
• Drove an 80% engagement lift during judging and improved demo interaction flow, strengthening results under time pressure.

• Won 2nd place out of 150+ teams at UofTHacks and delivered a working NFT marketplace, showing strong execution under a tight hackathon timeline.
• Targeted a 2.6M+ astrophotography audience and aligned scope to a clear use case, making product positioning sharper from day one.
• Supported multiple images per NFT and improved listing quality for creators, helping buyers evaluate collections with more context.
• Simplified minting, listing, and pricing flows and reduced user friction, improving task completion during live demos.
• Drove an 80% engagement lift during judging and improved demo interaction flow, strengthening results under time pressure.

• Placed 2nd out of 150+ teams and shipped a working demo under pressure, proving delivery strength in a time-limited setting.
• Built for a 2.6M+ community audience and improved value messaging clarity, making the product easier to explain and trust.
• Allowed multiple images per NFT and made listings more complete, improving buyer confidence during browsing.
• Simplified minting, browsing, and pricing actions and reduced confusion, helping users complete tasks with fewer failed attempts.
• Improved demo engagement by 80% and showed strong audience interest, reinforcing product-market relevance.

• Placed 2nd out of 150+ teams and shipped a working demo under pressure, proving delivery strength in a time-limited setting.
• Built for a 2.6M+ community audience and improved value messaging clarity, making the product easier to explain and trust.
• Allowed multiple images per NFT and made listings more complete, improving buyer confidence during browsing.
• Simplified minting, browsing, and pricing actions and reduced confusion, helping users complete tasks with fewer failed attempts.
• Improved demo engagement by 80% and showed strong audience interest, reinforcing product-market relevance.

• Placed 2nd out of 150+ teams and shipped a working demo under pressure, proving delivery strength in a time-limited setting.
• Built for a 2.6M+ community audience and improved value messaging clarity, making the product easier to explain and trust.
• Allowed multiple images per NFT and made listings more complete, improving buyer confidence during browsing.
• Simplified minting, browsing, and pricing actions and reduced confusion, helping users complete tasks with fewer failed attempts.
• Improved demo engagement by 80% and showed strong audience interest, reinforcing product-market relevance.

• Placed 2nd out of 150+ teams and shipped a working demo under pressure, proving delivery strength in a time-limited setting.
• Built for a 2.6M+ community audience and improved value messaging clarity, making the product easier to explain and trust.
• Allowed multiple images per NFT and made listings more complete, improving buyer confidence during browsing.
• Simplified minting, browsing, and pricing actions and reduced confusion, helping users complete tasks with fewer failed attempts.
• Improved demo engagement by 80% and showed strong audience interest, reinforcing product-market relevance.

Kevin Mok