Cost Optimization

How One Line of CDK Cut Our Caching Costs by 20%

Every production system needs a cache, and most of us run Redis on ElastiCache. By switching the engine to Valkey — a one-line CDK change — we saved 20% on our caching bill. Here’s the full story with real numbers.

How Understanding Redis Cut Our AWS Costs by 50%

Most AWS cost optimization advice focuses on resizing infrastructure. But in this real production case, scaling wasn’t the problem — logic was. Here’s how understanding versioned Redis keys reduced our AWS bill by 50% without changing traffic or load.