Zero transpiles and bundles all the code files (.js, .html, .jsx, .md, etc). But otherwise it just serves the file as-is.

Your static files (images, documents, etc) can reside alongside your code files. It won't affect your code.

If you project is structured like this:

- project/
  - index.jsx
  - style.css
  - logo.png

If you visit https://localhost:3000/ it will render your React page. The logo file is accessible at https://localhost:3000/logo.png as you would expect.