npm init --yes

npm install --save-dev hardhat

add node_modules and .env to .gitignore file

npx hardhat -> sample project

in hardhat.config.js -> add mumbai network -> use alchemy rpc + metamask private key

npx hardhat run scripts/sample-script.js -> errors bc ERR_INVALID_URL (didn't save alchemy url string correctly) -> fix

npx hardhat run scripts/sample-script.js -> error due to INSUFFICIENT_FUNDS (no mumbai MATIC)

get mumbai testnet eth from https://mumbaifaucet.com/

npx hardhat run scripts/sample-script.js -> deploys successfully and logs the contract address to console

Check your address (0xa41B6af0e5a3611E3694eE14EcEFeA85AD0cCADD) on https://mumbai.polygonscan.com/

Write a script to interact with your contract -> scripts/greet.js