If you don't have it yet, please [install composer](https://getcomposer.org/download/). Then you can install wallabag by executing the following commands:
```
-composer create-project wallabag/wallabag wallabag 2.0.0-alpha.2
+SYMFONY_ENV=prod composer create-project wallabag/wallabag wallabag "2.0.*alpha" --no-dev
php bin/console wallabag:install
php bin/console server:run
```