System-Design

Articles filed under System-Design.

2 articles · newest first

6 Sep 2026 16 min read

Beyond RAG: Building a Stateful AI System for Longitudinal Training Decisions

RAG still describes part of this system. It stopped describing the interesting part once retrieved context became durable state that could constrain the next decision.

21 May 2026 19 min read

When Postgres Is Enough: Building a Resilient Snapshot Ingestion Pipeline Without Kafka

A pragmatic backend write-up about using Postgres as a lightweight staging and coordination mechanism for a snapshot ingestion pipeline, without introducing Kafka before the workload requires it.