How embedding-based semantic caching works, why threshold tuning is the hardest part, cache invalidation patterns that prevent staleness, and practical implementations with GPTCache, LiteLLM, and a from-scratch Redis + FastAPI setup.
Cost
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Semantic Caching for LLM Applications: Cutting Cost and Latency -
OpenCost: Kubernetes Cost Attribution How to install and use OpenCost to break down Kubernetes spending by namespace, team, and workload — with Prometheus metrics, Grafana dashboards, and the allocation API.
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Self-Hosting vs Cloud: A Cost Analysis Real numbers comparing VPS, home servers, and managed services.