# 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 - [Measuring test coverage](https://ubuntu.com/docs/launchpad/developer/how-to/testing/measuring-coverage/index.html.md): How to measure Launchpad test coverage locally, including running the tests under coverage.py and reading the reports. ## Optional - [Top-level llms.txt](https://ubuntu.com/docs/launchpad/llms.txt): Complete documentation index.