<ul><li>Arbitrum offers low gas fees, fast transactions, and Ethereum compatibility for building smart contracts.</li><li>The tutorial walks through creating a simple 'On-chain Guestbook' where users can submit their name and message, stored publicly on the blockchain.</li><li>Tools used include Solidity for smart contract language, Hardhat framework, MetaMask for transaction signing, and the Arbitrum Sepolia Testnet for deployment.</li><li>Steps cover setting up MetaMask, writing the smart contract, configuring Hardhat, getting RPC and Private Key, deploying to TestNet, and key takeaways on building on Arbitrum.</li></ul>

📝 Building Your First Smart Contract on Arbitrum (Without Losing Your Mind)

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