> For the complete documentation index, see [llms.txt](https://docs.nuvolos.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.nuvolos.com/reference/applications/add-ons/postgis-add-on.md).

# PostGIS add-on

This add-on provides a PostgreSQL 15 database service with a PostGIS 3.3.1 extension installed and running on `localhost`, port 5432.

By default, a database named `nuvolos` is created, which can be accessed with the username/password `nuvolos/nuvolos`.

The database data files are stored in the application storage area, if you delete the application, all databases will be lost.

{% hint style="info" %}
If you add a PostGIS add-on to your application, your application will start in shared mode.
{% endhint %}

{% hint style="warning" %}
Note that you cannot have PostgreSQL and PostGIS add-ons turned on at the same time, because they listen on the same port for connections.
{% endhint %}