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Add a system design flashcards cheat sheet - #7

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feat/flashcards-cheat-sheet
Aug 22, 2026
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Add a system design flashcards cheat sheet#7
design-gurus merged 1 commit into
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feat/flashcards-cheat-sheet

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Adds cheat-sheets/flashcards.md, a rapid-fire question and answer deck for recall practice before an interview.

Why this format: cheat sheets are the best performing content type in this repo. interview-framework.md is the most read page after the README, ahead of every pattern and question. A flashcard deck extends that format into active recall, which is the gap between reading the material and being able to say it out loud in an interview.

What it covers: scale and performance, availability, CAP and consistency, load balancing and proxies, caching, CDN, databases and indexing, replication and quorum, sharding, messaging, APIs, real-time delivery, rate limiting and resilience, coordination, durability, the numbers worth memorizing, and the interview itself.

How it fits the repo: every section links to the pattern or cheat sheet that explains it in full, so the deck is an index into the existing content rather than a second copy of it. All 32 relative links resolve. No em dashes, per CONTRIBUTING.

Credit: the idea and a first version came from @piyooshsinha in #5. This version is reworked to house style and rewired to link only to content that exists in this repo.

A rapid-fire question and answer deck covering the repo's core patterns:
scale, availability, CAP and consistency, load balancing, caching, CDN,
databases, replication, sharding, messaging, APIs, real-time delivery,
rate limiting, coordination, durability, the numbers worth memorizing,
and the interview itself.

Every section links to the pattern or cheat sheet that explains it in
full, so the deck works as an index into the repo rather than a
standalone copy of it.

The deck idea and a first version came from @piyooshsinha in #5.

Co-authored-by: Piyoosh Sinha <42969861+piyooshsinha@users.noreply.github.com>
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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design-gurus merged commit b66e038 into main Aug 22, 2026
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