---
sidebar_position: 3
---

# Use

## Server

The server has a flatscreen mode where it pops open a window for you to interact on a 2D screen and XR mode where it becomes an OpenXR client.

### Images
Flatscreen mode upon initial startup:
![A pitch black window representing Stardust in flatscreen mode](/img/docs/run/flatscreen_1.png)

XR mode when OpenXR somehow fails:
![A black void representing Stardust in XR mode with a hand skeleton in the middle](/img/docs/run/flatscreen_2.png)

Flatscreen mode when `~/.config/stardust/skytex.hdr` is [Zhengyang Gate](https://polyhaven.com/a/zhengyang_gate):
![A pitch black window representing Stardust in flatscreen mode](/img/docs/run/flatscreen_3.png)

### Help screen
```
Stardust XR
Usage: stardustxr [OPTIONS]

Options:
  -h,--help                   Print this help message and exit
  -F,--flatscreen             Run Stardust in flatscreen mode
  --field-debug               Draw translucent meshes around fields
```