This site is

Everything, the web page, forum, mobile site on this site is hosted on a the same raspberry Pi 4.

This is intended as a proof of concept.

It runs lighttpd, mariadb(mysql) for the forum, Php7, even a local pi-hole for local DNS filtering and lightening fast requests.

The site was writen in notepad++ in HTML with some PHP ("include" fonction mainly) to share menus across pages. The site weight about 40 KB! + the Forum & Database

You can see the php live output here PHP Info