Fredy Acuna
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© 2026 Fredy Acuna

Hey, I'm Fredy.

I'm a senior full stack developer & data engineer, AWS Certified Solutions Architect. I build and ship my own products end to end, from software for sports clubs to AI tools you can run from Claude, and I write about what I learn along the way.

AWS Certified Solutions Architect – Associate
Fredy Acuna

Recent posts

  • Why Your Next.js Sitemap Is Empty (and the Native Fix)

    next-sitemap produced an empty sitemap index on my Next.js 16 site because every page renders on request. Here is why it happens, how to confirm it in the build manifests, and how I replaced it with a native app/sitemap.ts and robots.ts.

    October 30, 2026

  • Organic Driven Development (ODD): How I Work With AI Agents Every Day

    The workflow I use with Claude Code across my projects: authorize, explore, classify small vs large with the "resume from the diff" test, track a feature document before the first write, implement task by task with tests first, and close with a Risk line. It comes from Gentle AI, and here is how it looks in real repos.

    October 30, 2026

  • How to Add llms.txt to a Next.js Site (Generated From Your Content)

    llms.txt is a plain-markdown index of your site meant for language models. Here is how I added one to my Next.js portfolio with a route handler that builds it from posts and projects, so it never goes out of date.

    October 30, 2026

  • How I Automate Testing With AI Agents (Without Trusting Them Blindly)

    The test discipline I give my AI agents and what it looks like in three real repos: Vitest, Testcontainers and Playwright in HitZero, Vitest and Flutter tests in bici.taxi, and pytest for the NOVALYX media tools. RED before GREEN, structural guards, git hooks and a local CI that refuses to drift.

    October 30, 2026

All posts

Recent projects

  • NOVALYX

    NOVALYX

    An AI slopcore idol who knows he was generated. An original character and a music-video pipeline: songs, stills, motion and the edit, made with free-tier AI tools and local Python.

    October 30, 2026

  • bici.taxi

    bici.taxi

    Connects neighbors in Bosa (Bogotá) with trusted bicitaxi drivers: request a ride on the web with no app, while drivers get nearby trip alerts in a native app. Currently in a pilot.

    October 30, 2026

All projects

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