installation guide

npm install --save-dev hardhat
npx hardhat
npm install @openzeppelin/contracts

how to use hardhat

• https://dashboard.alchemy.com/

export ALCHEMY_API_KEY=
export MUMBAI_PRIVATE_KEY=
export METADATA_URL=
npx hardhat run scripts/deploy.ts --network mumbai

reference sites

• https://mumbai.polygonscan.com/address/0xe4ea0b9d767f03e9af24eda663bc6554dc980193
  • contract deploy history
• https://testnets.opensea.io/collection/ethtokyozkteam-1
  • watch our nft collection on opensea testnet