Installing MediaWiki on a Raspberry Pi/nan

Running on a Raspberry Pi can be very useful for demos, training, development, proof-of-concepts, or for small (personal) projects where no (big) server is needed/required.

It can also be used for developing countries (training/school environments) where no internet/electricity is available... A Raspberry Pi can easily run for hours/days on a UPS battery; a Raspberry Pi 3 has a built-in Wi-Fi access point available.

MitiaUiki liân-kiat

 * Installation instructions for installing MediaWiki on Debian or Ubuntu. These also work on Raspberry Pi OS.
 * Raspberry Pi

Guā-pōo liân-kiat

 * https://peppe8o.com/personal-mediawiki-with-raspberry-pi-and-docker/
 * http://trevorappleton.blogspot.be/2013/04/installing-mediawiki-on-raspberry-pi.html
 * http://willbeone-techtips.co.za/2018/02/12/installing-mediawiki-raspberry-pi3/