These are perpetual contracts, you can repay the fund as long as your current value is above the liquidation value.
You can borrow upto 5x of your contribution. You can pay only 20% and borrow 80% from the available pools.
Currently you can buy BTC, ETH, Matic, Aave, Link, Quick, Uni.
Currently liquidity providers can lend USDC USDT and ETH and earn interest.
Liquidity providers can withdraw their lent assets anytime they wish. There is no locking period.
Interest rates are a function of the liquidity available in each market, and fluctuate in real-time based on supply and demand. When liquidity is plentiful, interest rates are low. As liquidity becomes scarce, interest rates increase, incentivizing new supply and the repayment of borrowing. You aren’t locked into an interest rate — expect it to change.