Is reoldb available in retool on-premsise

I have a retool cloud application, which we are in the process of migrating to on-premise, but from what I see I do not have retoolb available on-premise, is it possible to configure this resource on-premise?

retooldb is part of an on premise deployment. You can even externalize it and use your own postgreSQL environment to host the database.

Here is some more information.