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WASI could be used without wasm, in theory. So it doesn't have to couple changes on multiple axes together.

I agree with the other poster, WASI is the next step for those who like CloudABI and Capsicum, and may really win by being coupled to the browser.

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By WASI alone you mean just do something a lot like cloudabi with the home directory emulation baked in?

The idea is the interface, and that is very nice and simple, so sure. But I think the ability to catch on must be in the implementation. I suppose parts of the WASI libc could be reused, but those parts could equally well be taken from the original Musl, right?

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