> For the complete documentation index, see [llms.txt](https://www.xrdev.app/mixed-reality-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.xrdev.app/mixed-reality-docs/lessons/lesson-2.md).

# 02 - Mixed Reality Developer Tools and Concepts

Short link: [aka.ms/UnityMixedRealityDeveloperTools](https://aka.ms/UnityMixedRealityDeveloperTools)

![Mixed Reality Developer Tools.](/files/-M2_XxWD2jKBnOEm2m4T)

### Overview

In this section, we will go through the developer tools and how to get started with debugging our applications. 

Second part of the course is focused on creating and using 3D assets in your applications.

* [**Concepts**](/mixed-reality-docs/lessons/lesson-2/concepts.md)
* [**Project**](/mixed-reality-docs/lessons/lesson-2/project.md)
* [**What could go wrong?**](/mixed-reality-docs/lessons/lesson-2/what-could-go-wrong.md)
* [**Resources**](/mixed-reality-docs/lessons/lesson-2/resources.md)


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