If you don't have it yet, please [install composer](https://getcomposer.org/download/). Then you can install wallabag by executing the following commands:
```
-SYMFONY_ENV=prod composer create-project wallabag/wallabag wallabag "2.0.*@alpha" --no-dev
+SYMFONY_ENV=prod composer create-project wallabag/wallabag wallabag "2.0.0-beta.1" --no-dev
php bin/console wallabag:install --env=prod
php bin/console server:run --env=prod
```