Sentinelle

I built Sentinelle, a lending vault on Monad that watches my collateral ratio every block and repays debt automatically if it gets risky, no idle cash sitting around waiting for a bad day. I'm on rotations most of the day and can't check my phone mid-shift, so this solves the actual problem I had: reacting to a position when I'm not able to look at it. What I learned building this: the first version used a pre-funded reserve for repayment, and it took me a while to realize that fights the whole point of borrowing, you're locking up extra capital just in case. Switching to self-deleverage, selling a slice of your own collateral instead, was the harder build but the right one. Also learned the hard way that a public testnet RPC has much tighter rate limits than you'd expect once you actually try to query historical event logs at scale.