alchemyplatform/vercel-alchemy-dapp-boilerplates-w-hardhat ? reverse-engineered prompt

Build me a simple Web3 dApp starter that I can deploy on Vercel.

I want a clean Next.js frontend with a wallet connect button, a basic navbar, and a home page that explains how to use the app and connect a wallet. Make it feel like a polished boilerplate I can customize later, not a full product. It should work with common EVM networks like Ethereum, Polygon, Arbitrum, Optimism, and Polygon zkEVM.

Also include a small Hardhat backend with one sample smart contract and a deploy script so I have an example of how the contract side fits in. Use the usual Web3 app setup with wallet support and blockchain helpers, and make sure the frontend can be run locally and deployed easily to Vercel.

If you need to check current docs for the best setup details, look them up online first. Keep the code organized and leave clear placeholders where I can add my own contract and app logic later.