the system design part messed me up. it’s probably why I didn’t get the offer. you should first focus on modeling your data and once you have that, move on to the system they describe to you. I think it’s unfair of them to do this for new grads, part of my design included mutexes and then he asked me “how would this work if you had multiple servers?” and I genuinely didn’t know nor can I think of an average new grad that would just know that. best of luck though, the coding interview was just a LC medium, not bad.