Non-Fungible Tokens (NFTs) are reshaping aspects of digital ownership and community interaction within the Web3 space. This detailed guide explores the development of an NFT marketplace's backend using Solidity, focusing on smart contracts that facilitate operations like listing, buying, and updating NFT prices. Aimed at those familiar with basic JavaScript and Ethereum terminology, the tutorial walks through setting up a development environment with tools like Hardhat, deploying smart contracts, and running scripts to interact with them on a local blockchain. It emphasizes understanding key functions and security measures, such as protecting against re-entrancy attacks. Additionally, the guide covers creating a sample NFT contract and deploying these contracts using Hardhat scripts, while also providing insights into executing transactions and verifying operations through interaction scripts. The tutorial concludes with recommendations for automated testing and a suggestion to develop a frontend, offering a comprehensive overview of building and managing an NFT marketplace.