> For the complete documentation index, see [llms.txt](https://docs.chamilo.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.chamilo.org/developer-guide/developer-guide/contributing.md).

# Contributing

Chamilo is an open-source project that welcomes contributions. This section covers how to contribute effectively.

* [**Coding Conventions**](/developer-guide/developer-guide/contributing/coding-conventions.md) — Code style and standards
* [**Git Workflow**](/developer-guide/developer-guide/contributing/git-workflow.md) — Branching, commits, and pull requests
* [**Testing**](/developer-guide/developer-guide/contributing/testing.md) — Testing strategy and tools