Raspberry Pi Photo
This website is developed on a credit card sized computer powered only by a cell phone wall charger and using a SDHC card for memory.
The computer is called a Raspberry Pi.
For more information click the link above for Raspberry Pi.
This was a Docker project and includes multiple Raspberry Pis running linux Docker containers. The Docker containers may be running Alpine or Debian, but are hosted on Raspberry Pi OS on either Raspberry Pi 4 or Raspberry Pi 3 computers. The containers are: Apache/PHP, MariaDB (mysql), PHPMyAdmin, NGINX (reverse-proxy), PiHole, and BubbleUPnP Server.