I Took My DApp Off My Laptop. The Internet Did Not Care, But I Was Thrilled.

Short summary

Deploying a smart contract from local development to Ethereum's Sepolia testnet requires test ETH from a faucet, configuring hardhat.config.js with an RPC endpoint, and updating your frontend. A critical lesson: smart contracts don't push updates to UIs—they emit events, and your frontend must listen. Adding event listening transforms a functional app into one that feels alive with real-time updates.

• •Deploy to Sepolia testnet using Hardhat with RPC endpoint and private key in .env
• •Smart contracts don't auto-update frontends—you must emit events and listen on the frontend
• •Events transform static UIs into responsive, real-time experiences

Generated with AI, which can make mistakes.