You can deposit ether into a smart contract, as long as it's at least 1.5x more money than the previous person. If you do that, you become "King of the fools", and your money gets sent back to the previous person.
Try running some of the following tasks:
(You don't need to deploy the contract for UI.)
npx hardhat test
npx hardhat run scripts/deploy.ts --network goerli
cd www
npm install
npm start