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:
XR mode when OpenXR somehow fails:

Flatscreen mode when ~/.config/stardust/skytex.hdr is Zhengyang Gate:

Help screen#
Stardust XRUsage: 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