Read the smart contract Vault.sol, try to steal all eth from the vault.

You can write a hacker contract and add some code to pass the forge test .

you need understand following knowledge points:

1. reentrance
2. ABI encoding
3. delegatecall

$ anvil

forge script script/Vault.s.sol --rpc-url http://127.0.0.1:8545 --broadcast

forge test -vvv