# 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 - [Tracking bugs across multiple projects](https://ubuntu.com/docs/launchpad/user/reference/bugs/multi-project-bugs/tracking-multi-project-bugs/index.html.md): Reference guide for tracking bugs across multiple projects in Launchpad. ## Optional - [Top-level llms.txt](https://ubuntu.com/docs/launchpad/llms.txt): Complete documentation index.