In every other propAMM, the quote is computed at trade time. On @0DFinance x @avnu_fi’s propAMM, the quote actually lives onchain: best bid, best ask, depth & timestamp stored in real storage slots, refreshed every block. This only works because Starknet makes persistent state & compute dirt cheap (~$0.002 per full refresh). If you have anything in mind, come build it onchain on Starknet.(StarkWare 🥷)