Welcome to Ultralytics Docs, your comprehensive resource for understanding and utilizing our state-of-the-art [machine learning](https://www.ultralytics.com/glossary/machine-learning-ml) tools and models, including [Ultralytics YOLO](https://docs.ultralytics.com/models/yolo26/). These documents are actively maintained and deployed to [https://docs.ultralytics.com](https://docs.ultralytics.com/) for easy access.
To install the `ultralytics` package in developer mode, which allows you to modify the source code directly, ensure you have [Git](https://git-scm.com/) and [Python](https://www.python.org/) 3.8 or later installed on your system. Then, follow these steps:
This command installs the `ultralytics` package such that changes to the source code are immediately reflected in your environment, ideal for development.
The `build_docs.py` script runs the full documentation build pipeline — the same process used for production deployments. It renders Jinja macros, generates API reference pages, pulls in model comparison pages, and applies HTML postprocessing.
Note that `zensical serve` does **not** render Jinja macros or include compare pages, so some pages (train, predict, val, export, tasks, and others) will display raw `{% include %}` tags instead of their actual content. Use the full build above to verify these pages.
Documentation is automatically built and deployed to [docs.ultralytics.com](https://docs.ultralytics.com) via the CI pipeline in `.github/workflows/docs.yml` on every push to `main`.
We deeply value contributions from the open-source community to enhance Ultralytics projects. Your input helps drive innovation! Please review our [Contributing Guide](https://docs.ultralytics.com/help/contributing/) for detailed information on how to get involved. You can also share your feedback and ideas through our [Survey](https://www.ultralytics.com/survey?utm_source=github&utm_medium=social&utm_campaign=Survey). A heartfelt thank you 🙏 to all our contributors for their dedication and support!
- **AGPL-3.0 License**: Ideal for students, researchers, and enthusiasts involved in academic pursuits and open collaboration. See the [LICENSE](https://github.com/ultralytics/docs/blob/main/LICENSE) file for full details. This license promotes sharing improvements back with the community.
- **Enterprise License**: Designed for commercial applications, this license allows seamless integration of Ultralytics software and [AI models](https://docs.ultralytics.com/models/) into commercial products and services. Visit [Ultralytics Licensing](https://www.ultralytics.com/license) for more information on obtaining an Enterprise License.
For bug reports, feature requests, and other issues related to the documentation, please use [GitHub Issues](https://github.com/ultralytics/docs/issues). For discussions, questions, and community support, join the conversation with peers and the Ultralytics team on our [Discord server](https://discord.com/invite/ultralytics)!
