Engineering blog — distributed systems, algorithms, and software architecture.https://aj.dev/https://aj.dev/blog/how-to-engineer-rate-limiting/https://aj.dev/blog/how-to-engineer-rate-limiting/A first-principles guide to designing rate limiting: what to protect and meter, where to enforce limits, how to distribute limiter state, and when to use local memory, Redis, Memcached, or a database.Sun, 13 Sep 2026 00:00:00 GMTarchitectureinfrastructure