Howtoforge published a guide about installing the ElkArte Forum Software on Ubuntu 20.04.

How to Install ElkArte Forum Software on Ubuntu 20.04

ElkArte is a free, open-source and powerful community forum building software based on Simple Machines Forum. It is written in PHP and allows you to create a community forum fully responsive to mobile and wireless devices. It is designed to provide all the features you need for a full-featured community forum right out of the box. ElkArte is the right choice for you if you are looking for a simple and straightforward forum platform that's easy to customize.

How to Install ElkArte Forum Software on Ubuntu 20.04