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

# Getting started

- [What is SAF?](https://gitbook.saf.guide/getting-started/what-is-saf.md)
- [Who supports SAF?](https://gitbook.saf.guide/getting-started/who-supports-saf.md)
- [SAF versions](https://gitbook.saf.guide/getting-started/saf-versions.md)
- [SAF Examples](https://gitbook.saf.guide/getting-started/saf-examples.md)
- [Release Notes](https://gitbook.saf.guide/getting-started/release-notes.md)
- [Introduction](https://gitbook.saf.guide/getting-started/introduction.md)
- [Geometry](https://gitbook.saf.guide/getting-started/geometry.md)
- [Best practice for SAF implementation](https://gitbook.saf.guide/getting-started/best-practice-for-saf-implementation.md)
- [Project and model specifications](https://gitbook.saf.guide/getting-started/project-and-model-specifications.md)
- [Units table](https://gitbook.saf.guide/getting-started/project-and-model-specifications/units.md)
- [Ignored objects and groups](https://gitbook.saf.guide/getting-started/project-and-model-specifications/ignore.md)