The Semantic Cache That Made a Free LLM Quota Feel Infinite
A token allowance is usually treated as a spending budget, which is the wrong mental model for free tiers. The right model is a cache to be managed,…
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Stream Postgres WAL to Redis: Real-Time Read Models with pg2redis
Real-time data pipelines are becoming a normal part of application architecture. Product pages need fresh stock counts, order status screens need fa…
Zero-JS Wasn't Enough: Edge Caching SSR HTML on Cloudflare Workers
The previous article ended with a confession: same build, two PageSpeed runs two hours apart, desktop Performance 99 and then 90. I blamed first-scr…
AI Added Caching to Your Code — And Quietly Polluted Your Business Logic
Originally published at recca0120.github.io Ask AI to add caching to your code, and it will. The result looks clean — cache logic extracted into a s…
Cache Stampede in Front of the CDN: Origin Server Loading Wars
Introduction: What is Cache Stampede in Front of a CDN? In today's high-performance web applications, Content Delivery Networks (CDNs) play an indis…