This is the content of feditest.org.
It is built with the Hugo static site generator, plus some Python scripts that generate a few of the pages.
Install Git and Git-LFS, and initialize it:
$ brew install git
$ brew install git-lfs
$ git lfs install
Install Hugo, e.g. on the Mac:
$ brew install hugo
Get the content:
$ git clone https://github.com/fediverse-devnet/feditest.org.git
$ cd feditest.org
$ git submodule update
Run:
$ hugo server
Then go to http://localhost:1313/
(actual port will be printed to the terminal).