[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8},"actionData","errors","root",{"_28":-5,"_38":-5,"_39":40,"_41":42,"_43":44,"_45":46,"_47":48,"_49":50,"_51":52,"_53":54},"routes/_store+/_readers+/email_author.$slug/route",{"_9":10,"_11":-5},"book",{"_12":13,"_14":15,"_16":17,"_18":19,"_20":21,"_22":23},"currentUser","id","Z2lkOi8vbGVhbnB1Yi9TdG9yZTo6Qm9va1Byb2R1Y3QvNzQ1NTk","title","Code a database in 45 steps (Go)","state","published","contactAuthorMethod","email","aboutText","

This series of test-driven small coding puzzles lets you code a database from scratch (no dependencies).

There are 45 puzzles, most puzzles are fewer than 50 lines of code, covering ALL major aspects of databases, including KV storage engines, LSM-Tree indexes, SQL, concurrent transactions, ACID, etc.

This sounds complicated, but software dev often evolves dealing with complexities, a skill not learned from tutorial-ish code or simple CRUD jobs.

This is the 1st Trial of Code project (2025). I plan to release more next year. Subscribe to get updates.

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Kick off your book project in 3 hours! Live workshop on Zoom. You’ll leave with a real book project, progress on your first chapter, and a clear plan to keep going. Saturday, May 16, 2026. Learn more…

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