🏛️ Building a Full-Stack DAO Governance Platform on SecureChain AI — A Week 4 Web3 Internship Journey

Yashwanth Rayapureddy — Mon, 25 May 2026 16:38:56 +0000

By Yash | Ether Authority Web3 Internship | Week 4

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Introduction

Decentralized Autonomous Organizations (DAOs) represent one of the most revolutionary concepts in Web3 — governance without a central authority, where every token holder has a voice.

For Week 4 of my Web3 internship at Ether Authority, I built a complete, production-ready DAO Governance Platform from scratch — smart contracts, frontend, and a live deployment on the SecureChain AI (SCAI) Mainnet.

🌐 Live Demo: [YOUR_VERCEL_LINK]
💻 GitHub: [YOUR_GITHUB_LINK]

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🏗️ Architecture Overview

The platform is built around 4 interconnected smart contracts:

[User Wallet]
│
▼
[GovernanceToken (DAOV)] ← Voting power
│
▼
[GovernanceDAO] ← Create & Vote on proposals
│
▼
[TimeLock] ← 2-day delay before execution
│
▼
[Treasury] ← Funds released by passed proposals

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📜 Smart Contracts

GovernanceToken (DAOV) An ERC-20 token built on OpenZeppelin. It includes:
A public faucet function (faucetMint()) so any user can claim 1,000 DAOV tokens once — no manual distribution needed!
Owner-only minting for deployer administration.
GovernanceDAO
The heart of the platform. Features include:
Minimum 100 DAOV tokens required to create a proposal.
Token-weighted voting — your DAOV balance = your voting power.
Proposals have a configurable duration (1–30 days).
Double-voting is prevented per address per proposal.
TimeLock
Implements role-based access control:
PROPOSER_ROLE → GovernanceDAO (so only passed proposals can queue actions)
EXECUTOR_ROLE → Deployer (for initial setup)
Enforces a minimum 2-day delay between a proposal passing and execution.
Treasury
A simple, secure ETH vault owned by the TimeLock. Funds can only be withdrawn through an on-chain governance vote — true decentralization.

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🖥️ Frontend Features

The React frontend is built with Vite + TypeScript + Ethers.js v6:

Automatic MetaMask integration — connects to SCAI Mainnet, and automatically prompts users to switch if they're on the wrong network.
Proposals Dashboard — view all proposals with live vote tallies, countdown timers, and status filters.
Create Proposal — a rich editor with markdown preview support.
Voting Dashboard — personal stats, voting history.
DAOV Faucet — any user can claim 1,000 test tokens in a single click.
Mobile responsive — hamburger menu for small screens.

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🔧 Tech Stack

Layer	Technology
Smart Contracts	Solidity ^0.8.20, OpenZeppelin v5
Development	Hardhat, TypeScript
Frontend	React 18, Vite, Ethers.js v6
Styling	TailwindCSS, Glassmorphism
Routing	React Router v6
Notifications	React Hot Toast
Deployment	Vercel (frontend), SCAI Mainnet (contracts)

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📦 Deployed Contracts (SCAI Mainnet — Chain ID: 34)

Contract	Address
GovernanceToken	0x78B9f07beb9e8510393e4B4631590baA988Af8aa
TimeLock	0x054890e3A9e48De13A41bD375045E5a1d9145170
Treasury	0xEe993650Aa439206D2ec0725413AfE3B9e74b37C
GovernanceDAO	0xADF4471EFA9dfd43B83ea8278652b60c0b419777

All contracts are verified on the SecureChain Explorer.

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🚀 How to Run Locally

Clone the repo

git clone [YOUR_GITHUB_LINK]
cd dao-platform

Install root dependencies

npm install

Navigate to frontend

cd frontend
npm install

Set up environment variables

cp .env.example .env

Edit .env with your contract addresses

Start the dev server

npm run dev

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💡 Key Learnings

Smart contract security matters — using ReentrancyGuard and the Checks-Effects-Interactions pattern protects against re-entrancy attacks.
TimeLock = trust — a mandatory delay before execution gives community members time to react to passed proposals.
Token-weighted voting has trade-offs — it rewards long-term holders but can be gamed by whales. Future iterations could use vote delegation.
Always use a public faucet — for any testnet dApp, making it easy for reviewers to get tokens is critical for a smooth user experience!

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🙏 Acknowledgements

Massive thanks to Bhavna and the Ether Authority team for designing such a structured, hands-on internship program. Building real projects week-by-week is the best way to learn Web3 development.

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Tags: #Web3 #Blockchain #Ethereum #ReactJS #SmartContracts #SCAI #Internship #Solidity #SecureChainAI #EtherAuthority #DAO #DeFi #OpenSource #Hardhat #Vite

DEV Community: Yashwanth Rayapureddy

🏛️ Building a Full-Stack DAO Governance Platform on SecureChain AI — A Week 4 Web3 Internship Journey

Clone the repo

Install root dependencies

Navigate to frontend

Set up environment variables

Edit .env with your contract addresses

Start the dev server