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All System Design AI Solutions Architecture & AI Engineering Interview Questions (61)

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Part 3 of 5

Let Each Part Do Its Job: How One School Library App Grew Up

Follow one school library's reservation app from a single program to a system with a broker, outbox, saga and read model. Every pattern arrives because a real complaint forces it: monoliths vs microservices, async jobs, queues and streams, delivery guarantees, retries, outbox, sagas, CQRS, event sourcing, and the object patterns inside the code. Guide 3 of 5.

Created 2026-09-15 · Updated 2026-10-15 · System Design

Part 1 of 2

Algomi Architecture, Part 1: The Backbone Every Product Shares

How Algomi's five web apps, single login, stateless API, shared library, market-hours worker, and hand-applied database migrations fit together.

Created 2026-09-26 · Updated 2026-10-15 · System Design

Part 2 of 2

Algomi Architecture, Part 2: Trading, Insights, Charts, Career, and the AI Guardrails

How a Telegram message becomes a broker order, why recommendations refuse to guess, and how one doorway keeps personal data away from third-party AI models.

Created 2026-09-26 · Updated 2026-10-15 · System Design