Aran Wilkinson
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Posts
  • 2026-07-03

    Owning the Harness

    Both camps in the AI-tooling debate are watching the wrong number. The cost lever you can actually control is the harness you run your models through.
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  • 2026-06-30

    Consuming a real-time feed reliably

    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.
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  • 2026-06-26

    Headcode started as a project to learn UK rail data

    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.
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  • 2026-05-27

    Introducing Headcode: A Unified API for UK Rail Data

    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.
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  • 2026-05-16

    Introducing jjw: a workspace manager for jj

    Introducing jjw, a small Go CLI for managing jj workspaces with bookmarks and lifecycle hooks, built to make parallel LLM coding agent workflows easier.
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  • 2026-05-13

    Why I built a reference Go project (and taught an AI agent to clone it)

    Why I built a reference Go project that doubles as a template an AI agent can clone, customise, and scaffold into a new service.
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  • 2026-05-12

    How I lost a database and learned to actually use AI

    After losing a PostgreSQL database by blindly following AI-generated commands, I developed a structured approach to working with AI that separates generation from judgement
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  • 2025-10-17

    Using CUE to unify IoT sensor data

    How CUE schemas eliminate type assertion boilerplate when handling multiple IoT sensor types in a home automation system
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  • 2025-09-30

    Building an MQTT client in Go

    Build a production-ready MQTT client in Go with real examples from a Home Assistant smart home setup. Covers concurrent processing and device integration.
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  • 2025-09-11

    Go 1.25's new JSON encoding package

    Go 1.25 introduces a new experimental JSON implementation that provides a improved encoding and decoding performance and more flexible approach to handling JSON data.
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