# 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

- [Best practices for development](https://ubuntu.com/docs/launchpad/developer/explanation/development-best-practices/index.html.md): Overview of best practices for Launchpad development including architecture, assertions, security, and performance guidelines.
- [Architectural guide](https://ubuntu.com/docs/launchpad/developer/explanation/development-best-practices/architecture/index.html.md): Learn about Launchpad's architectural values and design principles for writing maintainable, transparent, and operational code.
- [Assertions in Launchpad](https://ubuntu.com/docs/launchpad/developer/explanation/development-best-practices/assertions-in-launchpad/index.html.md): Understand when and how to use assertions in Launchpad code following best programming practices and guidelines.
- [Bug triage process background](https://ubuntu.com/docs/launchpad/developer/explanation/development-best-practices/bug-triage-process-background/index.html.md): Understand the bug triage process and how Launchpad prioritizes bugs by balancing project health and user needs.
- [Charm development](https://ubuntu.com/docs/launchpad/developer/explanation/development-best-practices/charms/index.html.md): Overview of Juju charm development principles and process for Launchpad deployments.
- [Code import in depth](https://ubuntu.com/docs/launchpad/developer/explanation/development-best-practices/codeimport/index.html.md): Learn about Launchpad's code import system for one-way synchronization from external repositories.
- [Page tests](https://ubuntu.com/docs/launchpad/developer/explanation/development-best-practices/page-tests/index.html.md): Learn how to use zope.testbrowser for page testing.
- [About Launchpad performance](https://ubuntu.com/docs/launchpad/developer/explanation/development-best-practices/performance/index.html.md): Learn techniques and tools for improving Launchpad performance.
- [Launchpad permissions](https://ubuntu.com/docs/launchpad/developer/explanation/development-best-practices/security-policy/index.html.md): Learn how Launchpad uses permissions to control access to views and object attributes and methods.
- [Template reuse](https://ubuntu.com/docs/launchpad/developer/explanation/development-best-practices/template-reuse/index.html.md): Learn template reuse techniques using fragment views and macros.

## Optional

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