You can check the live demo here
There are two options to import the package to a Unity project.
Use OpenUPM WebXR Export . It’s the best option, as it is much more easier to update the package later.
Use Git. It can let you use versions that are yet uploaded to OpenUPM - Mostly happens between releases.
One way is to set a new Scoped Registry in Project Settings > Package Manager for OpenUPM.
Name: OpenUPM
URL: https://package.openupm.com
Scope(s): com.de-panther
Then in Window > Package Manager selecting Packages: My Registries and the WebXR Export package would be available for install.
To add the package to your Unity project using Git, open the Package Manager window, click on the + icon, “Add package from git URL…” and add the path URL
https://github.com/De-Panther/unity-webxr-export.git?path=/Packages/webxr
To update the package, you’ll have to manually remove the corresponding package section from the packages-lock.json file. For more info read about Git dependencies in Unity’s manual.
Make sure to check WebXR Export in Project Settings > XR Plug-in Management > WebGL > Plug-in Providers.
And to copy the WebGLTemplates by Window > WebXR > Copy WebGLTemplates.
You might also want to add the WebXR Interactions package, as it has some Interaction Components and Samples.
You can get the WebXR Interactions package here or at OpenUPM WebXR Interactions .