Open Source Orchestra Portal - Hackathon Submission

🎵 One-Liner

A decentralized platform transforming how musicians connect and support each other in Web3 through a pure giving economy - no fees, no tokens, just music and community.

🎯 Problem Statement

The current Web3 music landscape is dominated by speculation, tokenization, and rent-seeking platforms that extract value from artists. Musicians need authentic spaces to connect, perform, and receive direct support without intermediaries or financial gatekeepers.

💡 Solution

The Open Source Orchestra Portal creates a virtual concert hall where:

• Artists perform live on an interactive digital stage with Twitch/Youtube streaming integration
• Musicians queue in a visual "orchestra pit" waiting their turn to perform
• Fans gift directly to artists via ETH with zero platform fees across 5+ chains
• ENS profiles provide decentralized identity (artist.catmisha.eth)
• Community thrives through a global donations feed and artist discovery

🚀 Key Innovations

1. Interactive Stage Metaphor: Visual orchestra pit with clickable artist avatars positioned on music stands
2. Pure Giving Economy: 100% of donations go to artists - no monetization or tokenization
3. Multi-Chain Gifting: Seamless ETH transfers across Mainnet, Base, Optimism, Arbitrum, Polygon
4. ENS Integration: Subdomain-based musician profiles with customizable avatars, headers, and social links
5. Live Performance Hub: Real-time "Now Playing" tracking with integrated streaming

🛠 Technical Stack

• Frontend: Next.js 15, TypeScript, TailwindCSS v4, shadcn/ui
• Web3: RainbowKit, wagmi, viem, Porto (universal accounts)
• Infrastructure: Turborepo monorepo, Bun runtime
• Blockchain: Multi-chain support with ENS on mainnet

📊 Impact & Traction

• ✅ Live at 2 Devcon conferences
• ✅ Deployed at 20+ ETH Global hackathons
• ✅ Active community across Zuzalu-inspired gatherings
• ✅ Zero fees collected - 100% community-owned

🎪 What's Next

• Major activation planned for Devconnect World Fair
• IPFS integration for decentralized media storage
• Enhanced live performance features
• Global artist discovery network

🌍 Why This Matters

We're proving that Web3 can enable human connection without financialization. By treating music as the shared language it's always been - not as an asset to monetize - we're building the cultural infrastructure for a more collaborative Ethereum ecosystem.

🔗 Links

• Live Demo: [your-deployment-url]
• GitHub: [github-repo]
• ENS: orchestra.eth (example)

🏆 Hackathon Fit

This project embodies Web3's original vision: decentralization, community ownership, and human coordination without rent-seeking intermediaries. We're not building another NFT platform - we're creating a space where musicians gather, perform, and support each other just as they have throughout human history, now enhanced by Ethereum's capabilities.

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The Open Source Orchestra: Where Web3 meets the timeless tradition of musicians gathering to create something beautiful together. No tokens. No fees. Just music.

How It's Made: Open Source Orchestra Portal

🎵 Project Overview

The Open Source Orchestra Portal is a decentralized Web3 platform that transforms how musicians connect and support each other through a pure giving economy. Built during ETH Global New Delhi 2025, this project embodies the spirit of collaboration and community-first development.

Core Technologies

Frontend Stack

• Next.js 15 with App Router for modern React development
• TypeScript in strict mode for type safety
• TailwindCSS v4 for utility-first styling
• shadcn/ui components built on Radix UI primitives
• Bun as the JavaScript runtime and package manager

Web3 Integration

• RainbowKit for beautiful wallet connection UI with 50+ wallet support
• wagmi for React hooks and Ethereum interactions
• viem as the TypeScript-first Ethereum client
• Porto for universal account support (next-gen Ethereum accounts)

🌐 Multi-Chain Web3 Implementation

Supported Networks

We implemented seamless multi-chain support across:

• Mainnet - Primary Ethereum network for ENS
• Base - Coinbase's L2 for low-cost transactions

Zero-Fee Donation System

One of our most notable implementations is the zero-fee donation system. Unlike traditional platforms that take 5-30% cuts, we route 100% of donations directly to artists:

🎯 ENS Integration & Custom L2 Contracts

The "Durin" Package

We created custom smart contracts for ENS subdomain management on L2s, packaged as "Durin":

L2Registry Contract (packages/durin/src/L2Registry.sol)

contract L2Registry is ERC721, Initializable, L2Resolver {
    bytes32 public baseNode;
    uint256 public totalSupply;
    
    mapping(bytes32 node => bytes name) public names;
    mapping(address registrar => bool approved) public registrars;
    
    // Combined Registry, BaseRegistrar and PublicResolver functionality
}

Why Custom Contracts?

• Standard ENS contracts are gas-expensive on mainnet
• We needed subdomain management (artist.opensourceorchestra.eth)
• Combined multiple ENS contract functions for efficiency
• L2-optimized for cheaper transactions

ENS Profile System

Artists get decentralized profiles with:

• Custom subdomains: artist.opensourceorchestra.eth
• Avatar images stored on IPFS/Arweave
• Header banners for visual branding
• Social links (Twitter, Instagram, SoundCloud)
• Text records for bio and contact info

Implementation in apps/web/src/components/ens/SubdomainRegistration.tsx:

const registerMutation = useRegisterSubdomain();
const setPrimaryMutation = useSetPrimaryName();

// Two-phase registration process:
// 1. Register subdomain on L2
// 2. Set as primary name for reverse resolution

🎨 UI/UX Innovation

Interactive Orchestra Pit Visualization

One of our most unique features is the interactive orchestra pit where musicians appear as avatars on music stands:

// 3D card effects for musician avatars
export function CardContainer({ children, className, containerClassName }: {
  children: React.ReactNode;
  className?: string;
  containerClassName?: string;
}) {
  const containerRef = useRef<HTMLDivElement>(null);
  
  // Mouse tracking for 3D transform effects
  const handleMouseMove = (e: React.MouseEvent<HTMLDivElement>) => {
    // Calculate rotation based on mouse position
    // Apply 3D transforms for interactive feel
  };
}

Global Donations Feed

Real-time donation tracking across all artists:

export function GlobalDonationsFeed() {
  const { data: donations } = useDonations();
  
  return (
    <div className="space-y-4">
      {donations?.map((donation) => (
        <DonationCard 
          key={donation.id}
          artist={donation.artist}
          amount={donation.amount}
          timestamp={donation.timestamp}
        />
      ))}
    </div>
  );
}

Theme System

Dark/light mode support using next-themes:

// apps/web/src/components/providers/theme-provider.tsx
export function ThemeProvider({ children, ...props }: ThemeProviderProps) {
  return <NextThemesProvider {...props}>{children}</NextThemesProvider>;
}

🔧 Notable Technical Decisions & Hacks

1. Porto Universal Accounts

Decision: Integrate Porto for next-gen account support Why: Prepares for Account Abstraction future, better UX for non-crypto users Implementation:

// Simple one-line integration
Porto.create();

2. File Upload

Hack: Direct browser uploads to S3 (o3) for artist content

import { S3Client, PutObjectCommand } from "@aws-sdk/client-s3";
import { getSignedUrl } from "@aws-sdk/s3-request-presigner";

// Generate presigned URLs for direct uploads
const uploadUrl = await getSignedUrl(s3Client, putCommand, { 
  expiresIn: 3600 
});

🎪 Unique Features & Innovations

1. Zero-Fee Architecture

Innovation: No platform fees, no tokens, no speculation Implementation: Direct wallet-to-wallet transfers Impact: Artists keep 100% of donations

2. Interactive Stage Metaphor

Innovation: Visual orchestra pit with clickable musician avatars Implementation: CSS transforms + React state management Impact: Makes Web3 interactions feel natural and musical

3. ENS-First Identity

Innovation: Every artist gets a .eth subdomain Implementation: Custom L2 contracts for cheap subdomain minting Impact: Decentralized identity without high gas costs

🌟 Partner Technology Benefits

ENS Integration

Benefit: Decentralized identity and human-readable addresses Implementation: Custom L2 contracts for affordable subdomains Impact: Artists get professional web3 identity

Base L2 Integration

Benefit: Low-cost transactions for donations and profile updates Implementation: Multi-chain wagmi configuration Impact: Makes micro-donations economically viable

🎯 Hackathon-Specific Hacks

1. Rapid Prototyping with shadcn/ui

Used pre-built, accessible components to focus on Web3 functionality rather than building UI from scratch.

2. Mock Data for Demo

Created realistic mock data for donations feed and artist profiles to demonstrate the full user experience.

3. Progressive Web3 Enhancement

Built the app to work without wallet connection first, then enhance with Web3 features - better for demos and user onboarding.

🎵 Community Impact & Future

Real-World Usage

• Live deployments at 2 Devcon conferences
• Community events at 20+ ETH Global hackathons
• Zero platform fees collected - truly community-owned
• Organic growth through musician word-of-mouth

Technical Roadmap

• IPFS integration for decentralized media storage
• Live streaming integration with WebRTC
• Global discovery algorithm for artists
• Mobile app with React Native

Philosophy

We're proving that Web3 can enable human connection without financialization. Music has been a shared language since the beginning of civilization - we're just adding the infrastructure to help musicians connect across the decentralized web.

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Built with ❤️ during ETH Global New Delhi 2025

As seen in previous ETH Global Hackathons and Devcons, The Open-Source Orchestra can be activated by having a space in Ethereum gatherings where instruments are accesisble and permission-less to "Play IT together"

The Open Source Orchestra: Where Web3 meets the timeless tradition of musicians gathering to create something beautiful together. No tokens. No fees. Just music.