System Design guides and tutorials

2 articles on scalability, caching, rate limiting and distributed systems.

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Designing a Rate Limiter: Token Bucket, Sliding Window and Redis

A practical design guide to rate limiting: fixed window, sliding log, sliding window counter and token bucket compared, with atomic Redis Lua implementations, a TypeScript middleware, response headers, failure modes and the trade-offs that matter in distributed systems.

Sep 11, 2026 · 10 min read

System Design

Caching Strategies for Scalable Systems

A practical look at caching in system design: where to cache, cache-aside vs read-through vs write-through vs write-behind, TTLs and invalidation, cache stampedes, multi-level caching with HybridCache and Redis in .NET, and how to measure whether a cache actually helps.

Jul 9, 2026 · 8 min read