Engineering notes

Practical lessons from shipping AI agents, RAG SaaS, and Django systems at scale.

• Sep 12, 2025 · 6 min

  LangGraph vs Vanilla Agents: When the Graph Earns Its Keep

  After shipping the Saudi hospital voice agent on LangGraph and a half-dozen vanilla tool-calling bots, here's when the graph abstraction is worth its weight — and when it just slows you down.

• Jul 4, 2025 · 8 min

  Django at 10 Million Records: Lessons from the RDM Migration

  Eight months, 10M+ records, 26 Django apps, and one legacy ASP.NET system that would not die quietly. Here's what actually mattered for performance.