Interactive deep dives into distributed systems and AI infrastructure. See the architecture, simulate failures, understand the tradeoffs — visually.
Finding mutual free time across attendees sounds simple — until you add time zones, recurring events, and 3B users. Bitmap ANDs, Redis BITOP, and 96-bit availability vectors deliver results in under 100ms.
Read deep dive →How Calendar finds mutual free windows across time zones using 96-bit availability bitmaps, Redis BITOP AND, and 15-min slot granularity.
From 30-second satellite delay to sub-3-second streams. CMAF, chunked encoding, CDN edge routing, and ABR algorithms.
How Instagram delivers read receipts instantly without triggering a DB write per message open. Event batching and cursor mechanics.
Real-time GPS from driver to rider every second. Location interpolation, geo-indexing, and heading prediction on live maps.
APNs, FCM, and the fan-out queue architecture behind 500M device deliveries in seconds. Priority routing and delivery guarantees.
How Google serves 6 billion autocomplete queries daily. Trie structures, personalization, real-time trending, and sub-50ms SLA at global scale.