> For the complete documentation index, see [llms.txt](https://da-home-studio.gitbook.io/elementary-os-user-handbook/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://da-home-studio.gitbook.io/elementary-os-user-handbook/best-practices/tips-and-tricks/add-ppas.md).

# Add PPAs

Though in elementary OS, it is recommended to install Flatpak apps, sometimes you have to add a Personal Package Archive (PPA) to your system to get the apps you need. For example, this is the way of installing [Pantheon Tweaks](https://github.com/pantheon-tweaks/pantheon-tweaks).

What helps you to do that is `software-properties-common`, which contains scripts like `add-apt-repository` and `apt-add-repository`, and thus simplifying the process of adding and removing PPAs.

{% hint style="danger" %}
**Mind the** [**recommendation**](https://www.reddit.com/r/elementaryos/comments/16sto8j/comment/k2b7kvj/?utm_source=share\&utm_medium=web2x\&context=3) **from Danielle Foré** (elementary OS founder):

> Be aware that adding an apt repository is functionally equivalent to creating a new administrator account on your computer for the repository owner. Packages from this repository will have root permission on your computer when they are installed. So be sure you absolutely trust the repository maintainer. I highly recommend against adding third-party apt repositories to your system.
> {% endhint %}

Installation of `software-properties-common` is simple.

Open your Terminal, and run:

```
sudo apt-get install software-properties-common
```

Now you can add PPAs to your system with the command which would look like

```
sudo add-apt-repository -y ppa:xxxxxxxxxx/xxxxxxxxxxx
```

and install the desired app from this PPA with the command like

```
sudo apt install <APP_NAME>
```

As a rule, you can always find the required installation info on the app web page ([example](https://launchpad.net/~apandada1/+archive/ubuntu/foliate)).

{% hint style="info" %}
[Useful article about **software-properties-common**](https://devicetests.com/software-properties-common-for-ppa)
{% endhint %}


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://da-home-studio.gitbook.io/elementary-os-user-handbook/best-practices/tips-and-tricks/add-ppas.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.