Show HN: Woxi - Open-source Mathematica / Wolfram Language reimplementation

The strongest reaction was that this is one of the few open-source math projects trying to replicate what users actually value in Mathematica: one coherent symbolic environment instead of a pile of loosely connected tools. Several people who had bounced off Sage or SymPy said the integration and consistency of Wolfram Language is the real asset, not just the individual algorithms. That made Woxi interesting even to paying Mathematica users, because it could preserve access to old notebooks, make the language easier to embed in applications, and eventually support better UX than the original front end. People also treated the project as plausibly usable already, not just an aspirational clone. One commenter got class visualization notebooks to render in Woxi Studio. Another said Rubi mostly works. A prospective user compared several open-source CAS options and found Woxi among the few that produced expected answers on their algebra tests, then immediately ran into concrete compatibility bugs around built-in system variables. That set the tone for the discussion: the idea has credibility, and the work ahead is now about edge cases, missing modules, and front-end gaps that determine whether someone can replace Mathematica for real work. The most requested additions were practical and domain specific, including PDE support, control systems, parallel functions, and interactive 2D notation input. The mood was enthusiastic, with a recurring undertone that Mathematica remains unusually good and expensive enough to justify this effort. The skepticism was less about whether the language is worth copying and more about whether reimplementing a proprietary system is the best use of open-source energy, and whether Wolfram intellectual property could become a problem. Even there, the sharper point was that compatibility with decades of existing notebooks is the whole reason the project matters.