---
id: runtime
title: Runtime
---

This section contains videos that explore the core Runtime, its operation, and how it implements cross-contract calls.

## Runtime Overview

An in-depth code overview of NEAR Runtime.

<iframe
  width="560"
  height="315"
  src="https://www.youtube-nocookie.com/embed/Xi_8PapFCjo"
  frameborder="0"
  allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture"
  allowfullscreen>
</iframe>

## Runtime Action and Data Receipts

An in-depth code review of how NEAR Runtime implements cross contract calls.

<iframe
  width="560"
  height="315"
  src="https://www.youtube-nocookie.com/embed/RBb3rJGtqOE"
  frameborder="0"
  allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture"
  allowfullscreen>
</iframe>

## Runtime State

An in-depth overview of how NEAR runtime operates with its state.

<iframe
  width="560"
  height="315"
  src="https://www.youtube-nocookie.com/embed/JCkSNL4ie1U"
  frameborder="0"
  allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture"
  allowfullscreen>
</iframe>
