Clone the repo
composer install
Configure your local web server to serve the web directory as a site
mkdir web/sites/default/files
chgrp www-data -R web
chmod g+w -R web/sites/default/files
Create a database
Go to the local url and run the web installer (choose "Standard")
cd to the web directory
vendor/bin/drush config-set system.site uuid 8061a200-27ed-4d40-8fc0-e239276e66dd (this is so that the config will import, as it will only import if the uuid is the same as the site it was generated from)
vendor/bin/drush config:delete shortcut.set.default (it always complains about the shortcut set already existing when you try to import the config)
vendor/bin/drush config:import --source ../config
~~In the GUI go to Structure->Content As Config and import all the taxonomy terms~~ Not sure if this is working
Appearance->Settings->Bartik and just save what's in there (to regenerate css)