A pattern for ingesting a continuous external stream in Go: a dumb, fast Kafka consumer that lands raw messages in Postgres, with per-partition fan-out, idempotent batched writes, and a landing table that never expires.

Headcode began as a way to learn UK rail data and how to use an LLM properly on something real. The product is a maybe; the research-to-PRD-to-tasks workflow I built alongside it, with review at every layer, is now how I work.

Headcode is a unified, developer-friendly JSON API that takes the fragmented, legacy feeds of the UK rail network and turns them into clean, enriched real-time data.