Perpetual Futures Funding-Rate Engine: Architecture (2026)
A 2026 systems design for a perpetual futures funding-rate engine: index/mark price, premium aggregation, settlement scheduling, and failure modes.
Valkey vs Redis vs Dragonfly: In-Memory Store ADR (2026)
An architecture decision record comparing Valkey, Redis, and Dragonfly in 2026: licensing, clustering, throughput, memory model, and when to pick each.
Agentic RAG Architecture Patterns: When Plain RAG Is Not Enough
Four agentic RAG patterns — planner-retriever, router, graph-RAG agent, reflective RAG. When each is worth it and the failure modes each introduces.
Retail vs E-Commerce: Technology Architecture Deep Dive
A first-principles comparison of retail and e-commerce technology stacks — POS systems, inventory sync, order management, and the converging omnichannel architecture.