Change server from single site to multiple sites

Hi there!

I want to have my own website on a VPS here, and I saw that there is a one-click installer for a Wordpress droplet, so that’s what I need for now.

But if at some point I want to install another website on the same server, is it possible to do it without being too disruptive to the current website?

I saw some guides on Digital Ocean that explain how to setup multiple websites ( https://www.digitalocean.com/community/tutorials/how-to-set-up-apache-virtual-hosts-on-ubuntu-16-04 ) but I’m new to owning and managing my own VPS so I don’t understand if that process can easily be implemented after I already have a website. Can I just follow that guide and add other websites at some point?

I’m asking because I think I saw in some other guide that the standard installation for a website on Apache has a specific folder, but to have multiple websites there’s a different folder structure to have, so I’m worried that the Wordpress 1-click installer will setup the VPS in a way that will make complicated at some point to add other sites?

Any help or info would be appreciated, I would like to create my first VPS and site today but I want to start in the right way :)