Using EditorXR in my application?

I'm interested in using EditorXR to build a custom workspace for my application. Is there an up to date sample project somewhere? The FAQ has a link to "ConnectInterfaces" but it's broken. I've got it working on 2018.3 with my Rift but there are a few bugs (ie: the interface background messed up). Is it stable enough for developing application demonstrations?
Thanks