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Source code is here: https://github.com/ncave/fable-raytracer/

Basically the demo is F# -> Rust -> Wasm

Why go from F# to Rust?

Perhaps one reason is that is the easiest way to use WASM. There is still not a mature .NET compiler that can generate WASM.

Another would be, you may want to interop with Rust at source level.

Isn't [Balero](https://fsbolero.io/) mature enough?

Well Bolero runs on Blazor and that runs mono runtime on interpreted mode. So it's not something you would want your code to run if you need high perf.

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