For Unity, I think you can just dynamically load DLLs as long as you're not on a plane form that requires AOT (iOS). Even then, for both Unreal and Unity there are many options to use scripting languages like js or lua or what have you.
Unity support for WebXR has been at the back of thier roadmap Under Consideration [1] for years and the valiant community driven efforts (@DePanther) are just too hard to keep current so lot of key Unity release improvements are missing.
Ok. will look into scripting plugins then for now, probably bridging some introspected interfaces. Would be nice if one could add/integrate existing JS libs but that's outside the Unity context.
So many great exec environments already for WASM. Is there already something available for Unity? Maybe even with a source language and compiler built in?
My focus currently is on creating code inside a running app (by the user) with references to selected Unity objects and their methods. While WebXR is great for this, the first (and sometimes only) SDK implementations for certain devices are usually in Unity.
WASM probably ist great for hotloading but would need a more complex toolset available at runtime to edit and create. Interactivity and incremental code creation would also be better in a scripting envirnment.
I got around lua so far, but bindigs seemed easy and a friend just chose it over integrating python just recently, so it seems to be getting some traction again, especially in tools and such to get a first step beyond a purely graphical UI.
