https://www.digitalocean.com/community/tutorials/como-instalar-e-usar-o-composer-no-ubuntu-18-04-pt
https://medium.com/codespace69/laravel-php-cant-install-laravel-installer-via-composer-f8a34a520a33
https://medium.com/@panjeh/update-laravel-installer-8b9c5e1a2366
https://duvien.com/blog/installing-composer-mac-osx
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