In this beginner to intermediate tutorial, users learn how to deploy a smart contract on the Polygon Mumbai testnet using Remix to create a dynamically updating NFT (dNFT) that changes based on the ETH price in USD. The process involves creating a MetaMask wallet, obtaining testnet funds, setting up a Chainlink VRF subscription, and deploying the dNFT smart contract. The tutorial also guides users through adding the dNFT as a VRF consumer, automating updates using Chainlink Automation, and viewing the NFT on OpenSea. The smart contract, which is pre-written, utilizes Chainlink Price Feeds to track ETH prices and Chainlink VRF for random background color updates, with automated changes occurring every two minutes as long as the subscription is funded.