> ## Documentation Index
> Fetch the complete documentation index at: https://docs.nx1cloud.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Notebooks

> Overview of NexusOne's Notebooks feature used for browsing JupyterHub notebook files and attaching the notebooks to an app version.

The NexusOne Notebook feature provides an interface for browsing JupyterHub notebook files and attaching
them to an [app version](./app-manager).

## Why NexusOne attaches notebooks to an app version

NexusOne attaches Notebooks to an app version because of the following reasons:

* **Asset packaging**: The notebook becomes part of the app's bundle, now all related pipeline assets stay grouped together.
* **Deployment consistency**: The notebook can reference the same app secrets and inherit IAM roles.
* **Governance**: NexusOne manages access through the app's IAM roles and permissions instead of managing
  the notebook access separately.
* **Reproducibility**: Anyone using the app version gets the exact notebook that matches the pipeline components
  used at that time.
* **Version control**: The notebook becomes part of a specific app version, so NexusOne tracks changes to code
  logic in the notebook file, alongside DAGs and artifacts.

## Ways to upload notebooks

You can make a notebook file available in the Notebook UI and attach it to an app version
in either of the following ways:

* Upload the notebook through the Notebook feature.
* Use `s3Cli` from the [JupyterHub Notebook](/documentation/platform/tasks/launch-a-hosted-app)
  command-line environment to upload the notebook file.

## Supported apps you can attach

NexusOne supports several app types in its App Manager feature. You can only attach the following app types to a Notebook:

* Full pipeline
* Notebook pipeline

## Use cases

These examples show how different industries and teams can use NexusOne's Notebooks capabilities:

* **Financial services**: Develop and version data processing logic in a notebook for trading and reporting
  pipelines, with its changes tracked as part of app versions.
* **Healthcare**: Build and validate clinical data workflows in notebooks before adding them to
  pipeline assets.