Intuitive explanations of systems-level engineering, architecture, and low-level mechanics.https://blog.krsh.io/https://blog.krsh.io/posts/example/https://blog.krsh.io/posts/example/A hash table is a bookshelf with a rule for which shelf to check first—so most lookups never walk the whole room.Sat, 31 Oct 2026 00:00:00 GMThttps://blog.krsh.io/posts/write-ahead-log/https://blog.krsh.io/posts/write-ahead-log/Before you trust memory, append what you meant to do to a durable log—so a crash can replay the story.Tue, 20 Oct 2026 00:00:00 GMT