# Frequently Asked Questions (FAQ)

## Why we do not add your favorite package

We have lots of users with different packages they want to use.
Adding them all is impossible, so we have several images to choose from.
[Choose the one](selecting.md), that is closest to your need and feel free to [add them on top of our images](recipes.md#using-mamba-install-or-pip-install-in-a-child-docker-image).

## Who is `jovyan`

`Jovyan` is often a special term used to describe members of the Jupyter community.
It is also used as the user ID in the Jupyter Docker stacks or referenced in conversations.
You can find more information [here](https://docs.jupyter.org/en/latest/community/content-community.html#what-is-a-jovyan).

## How to give root permissions to the user

We have a [recipe for enabling root permissions](recipes.md#using-sudo-within-a-container).