Thank you for sharing this on HN.

It's a worthwhile effort. If successful, Woxi can enable a large mass of scientists and engineers who don't have access to Mathematica to run legacy code written for it. Also, Woxi would give those scientists and engineers who regularly use Mathematica a non-proprietary, less restrictive alternative, which many of them would welcome.

How does Woxi compare to other "clean-room implementations"[a] of the same language?

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[a] Please check with a lawyer to make sure you won't run into legal or copyright issues.