Build a Low‑Latency Feature Store with DuckDB, Redis, and FastAPI
A five‑component DIY feature store built with DuckDB, Parquet, Redis, and FastAPI eliminates training‑serving skew and powers real‑time LLM‑driven recommendations. The guide walks through a registry, offline/online stores, materialization, and a low‑latency API, showing code you can copy into production today.