// DOWNLOAD THE FILES AND RUN COMPOSER INSTALL
cd to /htdocs folder in MAMP
$ composer create-project drupal-composer/drupal-project:8.x-dev my_site_name_dir --no-interaction
// this will make a folder called /my_site_name_dir, then download lots of files and components
// make sure the memory_limit of your current MAMP php version is very high
// OPGELET: composer installeert een /web folder.
// De root van je site is vanaf nu de /web folder!
// CREATE AN EMPTY DB in MAMP
// Surf naar localhost/nieuwesite/web
// RUN THE INSTALLER
// OPGELET: installer bleef steken in Chrome, mogelijk probleem met cookies.
// FIREFOX installeert correct