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System Cards (v10)

26 ByteByteGo system cards — summaries and interview scripts.

GitHub Pages: Per-system .md files show as raw text here. Open the pre-rendered HTML edition for all 26 ByteByteGo cards.

v10 pre-rendered HTML (recommended on Pages) · Full interactive v10

Easy (2)

Scale From Zero to Millions EasyURL Shortener (TinyURL) Easy

Medium (12)

Rate Limiter MediumConsistent Hashing MediumUnique ID Generator MediumWeb Crawler MediumNotification System MediumSearch Autocomplete (Google Suggest) MediumGoogle Drive / File Storage MediumProximity Service (Yelp) MediumHotel Reservation System MediumNearby Friends MediumEmail Service MediumReal-time Gaming Leaderboard Medium

Hard (12)

Distributed Key-Value Store HardNews Feed (Facebook/Twitter) HardChat System (WhatsApp/Slack) HardYouTube / Video Platform HardDistributed Message Queue (Kafka) HardPayment System HardGoogle Maps HardMetrics Monitoring & Alerting HardAd Click Aggregation HardStock Exchange HardS3-like Object Storage HardDigital Wallet Hard