Damn Vulnerable DeFi — Challenge #2 Walkthrough

Continuing our exploration of the Damn Vulnerable DeFi wargame, the next puzzle is called Naive receiver. It challenges players to drain a DeFi user’s account:

There's a lending pool offering quite expensive flash loans of Ether, which has 1000 ETH in balance.
You also see that a user has deployed a contract with 10 ETH in balance, capable of interacting with the lending pool and receiveing flash loans of ETH.
Drain all ETH funds from the user's contract. Doing it in a single transaction is a big…