# Pinning

> **Important Note**
>
> Do not add this section to the project's SUMMARY.md yet. Once CLs/PRs to
> accept all the new segments for the Unsafe Deep Dive have been included in the
> repository, an update to SUMMARY.md will be made.

## About

This segment explains pinning, Rust's `Pin<Ptr>` type and concepts that relate
to FFI rather than its async use case. Treatment of the `Unpin` trait and the
`PhantomPinned` type is provided.

## Status

Provisional/beta.

## Outline
