npm init -ynpx hardhat- Select : Create an empty hardhat.config.
npm install --save-dev hardhatnpm install --save-dev @nomiclabs/hardhat-waffle @nomiclabs/hardhat-ethers ethereum-waffle chai solidity-coverage
npm run build: for build your contract.npm run test: for test your contract.npm run test:test: for test your contract.npm run local-testnet: for run testnet.npm run deploy:local: for deploy your contract to testnet.