# 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 image](selecting.md), that is closest to your needs and feel free to [add your package on top of our images](recipes.md#using-mamba-install-recommended-or-pip-install-in-a-child-docker-image). ## Who is `jovyan` As described [here](https://github.com/jupyter/docker-stacks/issues/358#issuecomment-288844834): ```text Jo·vy·an /ˈjōvēən/ noun – an inhabitant of Jupyter ``` `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).