We need composer to install all packages. Here the complete instruction to install composer https://getcomposer.org/doc/00-intro.md
Let's install all packages, by running this command from Terminal
composer install
Let's do some migration and seed with dummy data.
php artisan migrate --seed
And run the web server
php artisan serve
Now, visit http://localhost:8000 to try the demo.
This demo use SQLite database by default.
If you want to use another database, you can set configuration in config/database.php.