Hugo Modules are the core building blocks in Hugo. A module can be your main project or a smaller module providing one or more of the 7 component types defined in Hugo: static, content, layouts, data, assets, i18n, and archetypes.

You can combine modules in any combination you like, and even mount directories from non-Hugo projects, forming a big, virtual union file system.

Hugo Modules is powered by Go Modules. For more information about Go Modules, see:

• https://github.com/golang/go/wiki/Modules
• https://blog.golang.org/using-go-modules

This is all very much brand new and there are only a few example projects around:

• https://github.com/bep/docuapi is a theme that has been ported to Hugo Modules while testing this feature. It is a good example of a non-Hugo-project mounted into Hugo’s folder structure. It even shows a JS Bundler implementation in regular Go templates.
• https://github.com/bep/my-modular-site is a very simple site used for testing.