The DEMO version only includes 4 pages:
http://emacs.cafe
http://emacs.cafe/about.html
http://emacs.cafe/emacs/org-mode/org-roam/2021/03/11/introduction-to-nroam.html
http://emacs.cafe/emacs/javascript/indium/2018/11/28/indium-20-released.html

It is possible to download these free files and install them on your server, so you can test how the site works.
Visit https://www.waybackmachinedownloader.com/en/buy-wayback-machine-downloader-recover/ to buy a fully functioning site.
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