Daniel Castillo

Developer Tools, Built with Care.

I’ve worked on many projects over the years, but these are the developer tools I’m actively building and maintaining right now. Some are free and open-source, while others are paid products.

  • SEO in Next.js

    SEO in Next.js

    Ship your Next.js app with SEO by default

  • SEO in Astro

    SEO in Astro

    Ship your Astro app with SEO by default

  • Nova.js

    Nova.js

    A collection of dependency-free React hooks

  • Skillit

    Skillit

    Turn your Starlight docs into AI skills with a single command

  • Starlight Page Actions

    Starlight Page Actions

    Turn your Starlight docs into AI-ready documentation

  • Starlight UI Tweaks

    Starlight UI Tweaks

    Customize Starlight beyond the defaults