> For the complete documentation index, see [llms.txt](https://book.r4re.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://book.r4re.io/introduction/rare/rarefoundation.md).

# RareFoundation

<figure><img src="/files/84gG9udqgd3rFgYPDVnu" alt="" width="375"><figcaption></figcaption></figure>

<figure><img src="/files/e1xKVRtSDt3qaiFIrmWl" alt="" width="188"><figcaption></figcaption></figure>