No but there is some WebVR support, feel free to upgrade that to WebXR and send pull-requests.

The whole assets system is in place to make all the different types of assets work the same on all the different platforms - which means it is littered with platform-specific code which can not work in macros. So using the Sys API is the right approach but can getCwd even make sense in a macro? The current working directory is fundamentally a runtime thing, not a compile-time thing. Maybe have a look at kha.internal.AssetsBuilder instead, you should find some macro code to figure out the correct directories in there.

And thank you, it really does help to read a nice message once in a while.

Sorry but Kha is explicitly not made for doing that. You can probably hack something together like that Lazy Update thing but you'll probably have to do it yourself.

No, not yet.

That's what I mean.

Sure, why not?

Yes, it's stableish. Whatever is on the master branch is usually the most stable thing there is.

Menus should never be included, so that's a bug in Kinc. Please send a pull request.

Really have a hard time to understand what you're saying but the reason you don't have any graphics is likely because you didn't set a colour.