Astro makes it easy for you to add resource routes. These let you serve a file or some data instead of the regular HTML, Astro is famous for serving at speed! You could go for an XML sitemap, an RSS feed, or even a PDF of the company newsletter. You would expect this in Server-Side Rendered mode, but note, Astro lets you create resource routes even in the default, Static Site Generator mode. To get going create a source file to match the path of the resource (just add .js or .ts on the end). Then export a `get`, `post` etc function which returns the resource data.