Lets you list a job then if/when a someone accepts that job, holds onto the owners money on behalf of them and when they finish the job, mark it as complete, wait till the owner revises the job,the owner accepts it and send the money or rejects it and goes back to wait to complete
npx hardhat help
npx hardhat test
REPORT_GAS=true npx hardhat test
npx hardhat node
npx hardhat run scripts/deploy.ts