# Launchpad

> This is the documentation for Canonical Launchpad, an open source platform that
> enables open source developers to collaborate with others to build and publish open
> source software.


2026 CC-BY-SA, Canonical Ltd.

## Pages in this subsection

- [Personal Package Archive](https://ubuntu.com/docs/launchpad/user/reference/packaging/ppas/ppa/index.html.md): Personal Package Archive reference - supported series and architectures, quotas, retention, and signing key facts.

## Optional

- [Top-level llms.txt](https://ubuntu.com/docs/launchpad/llms.txt): Complete documentation index.