Hey my bad, it's fixed now! Eve deployed it on my account as a static site (hosted in cloudflare R2) but the cloudflare worker wasn't pointing at it correctly, which led to a weird fallback behavior from cloudflare where it just gives back an empty file (zero bytes). Fixed :)
Iirc Godot is taking the approach from both sides however and also working on a libgodot which will allow a "bring your own runtime" which I'm much more interested in than the integrated "environments" that are Unity and Godot today. I'm likely in the minority though as they only started making a library export after the all in one environment was stable enough...
Godot is nowhere near to something like C# HPC, Jobs and Burst. And I’m afraid even GDExtension can’t help with that.
At least not with Godot’s scene structure which prioritises simplicity over performance.
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