Installing Drupal

So I am trying to install DKAN, which also includes installing Drupal. So I follow these instructions (Page. 19)

So I have downloaded it, extracted it and I got stuck at this line:

drush make --prepare-install drupal-org-core.make webroot --yes

I get the following error message:

Hello,

First of all I'd like to preface by saying I'm a total noob with a lot of this stuff so please forgive my technical ignorance.

I need to install drupal commerce on my shared hosting server but I cannot because there's some sort of a memory limitation while trying to install it using composer which is, according to the drupal commerce developers, the proper way to install it.

When doing a fresh install of Drupal, one of the steps is to run the command

mysql -u root -p

where you can define a database, user and password.

I'm trying to install Drupal 9.1 on a GoDaddy.com Linux-based Virtual Personal Server.

When I do that, I get a couple of error messages that I'm having trouble diagnosing.

!The selected version 9.1.0 is not compatible with the selected install location.

Requirements:
php-fileinfo ON (detected: OFF)
php-zip 1- (detected OFF)

My main questions are:

1) What is the "right" location to install Drupal?

Sorry to ask for these questions but I could not make the installation work after several hours of trial and error.

I am trying to install Drupal on a local development server running under Ubuntu Linux 20. I want to be able to develop several drupal websites on my local servers, and am trying to set it up.

I want to have the website on a specific directory (not the usual var/www/) folder and cannot configure it to work.

Let's say that the sites should be called testsite1 and testsite2

Here is the configuration:

    Ubuntu Linux 20

We have a Debian LAMP stack that's been hosting a number of drupal 7/8 sites for quite a while.
Apache 2.4.25
MariaDB 10.1.47
PHP 7.3

I've just gone to install a new project using composer with the cmd
./composer.phar create-project drupal/recommended-project:8.9.11 wibble

I've then gone to the web browser to complete the install and the site opens ok and I get the "choose language screen"
https://%url%/core/install.php