I started web dev with PHP and later Ruby on Rails, then went through the whole React and Next cycle, and recently discovered islands and Astro with its good old MPA architecture. But I felt things could be even simpler.

Mastro is my attempt to crystallise the essence of web development. It consists of four interrelated things:

- An introductory guide to HTML, CSS and JS: shows you how to build and publish a website to GitHub Pages – all from within your browser.

- A static site generator that runs as a VSCode extension in your browser.

- A minimal web framework with no bundler, no client-side JS and no bloat.

- Reactive Mastro: a tiny (2.8k min.gz) client-side reactive GUI library for your existing MPA or Mastro project.