NFT

3 contracts

1. basic nft
2. random ipfs nft

pros: cheap

cons: need guarantee pin on ipfs

3. dynamic svg nft dynamic: nft can change (to some degree) based on real-world parameters

For example: if ETH is higher than a price, it's smile face otherwise it's frown

pros: data is on chain cons: expensive

npx hardhat help
npx hardhat test
REPORT_GAS=true npx hardhat test
npx hardhat node
npx hardhat deploy