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The web app keeps everything in Neon Postgres. This one doesn't talk to it at all — notes, courses, chats and quizzes live in on-device SQLite through expo-sqlite and Drizzle. That's deliberate.

Learn how to test CDN performance from the command line using curl and dig. Measure TTFB, DNS latency, cache hits vs misses, ...

System design, programming languages, DevOps, cloud infrastructure, and the craft of writing clean code. From junior devs to principal engineers. "Without a doubt, my favorite tech community is the ...