So you’ve heard the buzz about Arbitrum… Low gas fees? Fast transactions? Ethereum compatibility? Now you’re ready to build. Let’s walk you through your first smart contract on Arbitrum — step by step.🚧 What We’re BuildingWe’ll build a simple “On-chain Guestbook”. Users can submit their name and a message. The data is stored publicly on the blockchain. It’s like Web3 Twitter, but way cooler.🛠 Tools We’ll UseSolidity – Smart contract languageHardhat – Framework for writing solidityMetaMask –...