I am a front end engineer and need to pass a system design interview

Throwaway, I am actually a frequent responder on the sub, but now I need your help! I got myself an onsite at a big-n for an Engineering Manager position. I am currently an eng manager for a team of f

Throwaway, I am actually a frequent responder on the sub, but now I need your help! I got myself an onsite at a big-n for an Engineering Manager position. I am currently an eng manager for a team of front end devs, and that's where my expertise is too. JS is my bread and butter. Got in it from a non-CS angle but still pretty technical. So I am grinding leetcode, hoping to get away with easy-medium, but one of the interview hours is "System Design" Recruiter tells me: >Prepare for questions around distributing a computation over multiple machines > > Don't say "use a standard database and do queries against it;" They don't want answers involving off-the-shelf products, rather how do you build from scratch ​ I know jack shit about distributed computations and distributed databases. ​ How do I prep so that I at least don't make an ass of myself? Any books that don't go too in depth but hit the right notes? Any blogposts for an audience like me?