ERC-721 NFT Implementation — Lesson overview

Implement ERC-721 the way wallets and marketplaces expect: safe mints, correct events, and metadata that resolves.

Extend with controlled supply, roles, and optional royalties without breaking compatibility.

Ship production-ready NFTs that indexers can read, users can trade, and you can upgrade responsibly.

Context Most NFT bugs are glue bugs: missing events, wrong baseURI, or unsafe minting. We’ll practice the full happy path and the footguns.