fastn language is a language to create web pages or documents for publishing on the web. fastn takes markdown, and adds features to create full page layouts, lets you create reusable fastn components, and has first class support for data modelling, so the fastn document can be used as an data exchange format as well(as a replacement of JSON/CSV etc).

fastn is the package manager for fastn language, which defines a package format for packaging .ftd files. fastn packages can depend on other fastn packages, and fastn can install all the dependencies of a package.

fastn can also convert .ftd files to static HTML files, so you can use it as a static site generator, and publish .ftd files on Github Pages, Vercel, S3 etc static site hosting sites.

fastn can function as an HTTP server, providing opportunities for dynamic features.

You can create a fastn package that defines a color scheme. In your main package, you can then import one of the color schemes and use or modify the colors as needed.

You can organize and navigate your pages effectively by defining your package in the form of a sitemap.