Very shallow walkthrough, you need to explain how the lookup table works. C doesn't have hashmaps built in. Without reading the entire source code, for all we k

Very shallow walkthrough, you need to explain how the lookup table works. C doesn't have hashmaps built in. Without reading the entire source code, for all we know Redis could be using a for loop across 75K entries. You need to explain how the lookup works otherwise junior engineers (especially the sort that came out of JS/Python bootcamps) would get confused.