Show HN: A static site generator running in the browser

Mastro: a static site generator that runs as a "Visual Studio Code for the Web" extension in your browser.

1. Go to your GitHub repo and press . to open VSCode for Web

2. Install the "Mastro" VSCode extension and run it with `Cmd-Shift-P` -> `mastro: Preview and Generate Website`

3. Commit & Push to deploy to GitHub Pages

All without ever leaving your browser.