How do modular pages work?

I wonder how it all fits together: The page-tree and the modules, and: what are modules and how look they in code?

Thanks
Timo

The docs have a little information on Modular Pages.

However the best way to understand modular pages is download and inspect the One-Page Site Skeleton as this has a working example of how modular pages are implemented.

I also plan on putting together a blog post to better explain the benefits and implementation details for modular pages. So that's coming soon!

thanks :D